CHAPTER IV.

LOCKE.

AFTER the Cartesian philosophy had given decisive expression to the tendencies of modern thought, and had been developed through occasionalism to its completion in the system of Spinoza, the line of further progress consisted in two factors: Descartes's principles-one-sidedly rationalistic and abstractly scientific, as they were-were, on the one hand, to be supplemented by the addition of the empirical element which Descartes had neglected, and, on the other, to be made available for general culture by approximation to the interests of practical life. England, with its freer and happier political conditions, was the best place for the accomplishment of both ends, and Locke, a typically healthy and sober English thinker, with a distaste for extreme views, the best adapted mind. Descartes, the rationalist, had despised experience, and Bacon, the empiricist, had despised mathematics; but Locke aims to show that while the reason is the instrument of science, demonstration its form, and the realm of knowledge wider than experience, yet this instrument and this form are dependent for their content on a supply of material from the senses. The emphasis, it is true, falls chiefly on the latter half of this programme, and posterity, especially, has almost exclusively attended to the empirical side of Locke's theory of knowledge in giving judgment concerning it.

John Locke was born at Wrington, not far from Bristol, in 1632. At Oxford he busied himself with philosophy, natural science, and medicine, being repelled by the Scholastic thinkers, but strongly attracted by the writings of Descartes. In 1665 he became secretary to the English ambassador to the Court of Brandenburg. Returning thence to Oxford he made the acquaintance of Lord Anthony Ashley (from 1672 Earl of Shaftesbury; died in Holland 1683), who received him into his own household as

a friend, physician, and tutor to his son (the father of Shaftesbury, the moral philosopher), and with whose varying fortunes Locke's own were henceforth to be intimately connected. Twice he became secretary to his patron (once in 1667—with an official secretaryship in 1672, when Shaftesbury became Lord Chancellor--and again in 1679, when he became President of the Council), but both times he lost his post on his friend's fall. The years 1675-79 were spent in Montpellier and Paris. In 1683 he went into voluntary exile in Holland (where Shaftesbury had died in January of the same year), and remained there until 1689, when the ascension of the throne by William of Orange made it possible for him to return to England. Here he was made Commissioner of Appeals, and, subsequently, one of the Commissioners of Trade and Plantations (till 1700). He died in 1704 at Oates, in Essex, at the house of Sir Francis Masham, whose wife was the daughter of Cudworth, the philosopher.

Locke's chief work, An Essay concerning Human Understanding, which had been planned as early as 1670, was published in 1689-90, a short abstract of it having previously appeared in French in Le Clerc's Bibliothèque Universelle, 1688. His theoretical works include, further, the two posthumous treatises, On the Conduct of the Understanding (originally intended for incorporation in the fourth edition of the Essay, which, however, appeared in 1700 without this chapter, which probably had proved too extended) and the Elements of Natural Philosophy. To political and politico-economic questions Locke contributed the two Treatises on Government, 1690, and three essays on money and the coinage. In the year 1689 appeared the first of three Letters on Tolerance, followed, in 1693, by Some Thoughts on Education, and, in 1695, by The Reasonableness of Christianity as delivered in the Scriptures. The collected works appeared for the first time in 1714, and in nine volumes in 1853; the philosophical works (edited by St. John) are given in Bohn's Standard Library (1867–68).*

* Lord King and Fox Bourne have written on Locke's life, 1829 and 1876. A comparison of Locke's theory of knowledge with Leibnitz's critique was published by Hartenstein in 1865, and one by Von Benoit (prize dissertation) in

(a) Theory of Knowledge.-Locke's theory of knowledge is controlled by two tendencies, one native, furnished by the Baconian empiricism, and the other Continental, supplied by the Cartesian question concerning the origin of ideas. Bacon had demanded the closest connection with. experience as the condition of fruitful inquiry. Locke supports this commendation of experience by a detailed description of the services which it renders to cognition, namely, by showing that, in simple ideas, perception supplies the material for complex ideas, and for all the cognitive work of the understanding. Descartes had divided ideas, according to their origin, into three classes: those which are self-formed, those which come from without, and those which are innate (p. 92), and had called this third class the most valuable. Locke disputes the existence of ideas in the understanding from birth, and makes it receive the elements of knowledge from the senses, that is, from with

He is a representative of sensationalism,-not in the stricter sense, first put into the term by those who subsequently continued his endeavors, that thought arises from perception, that it is transformed sensation--but in the wider sense, that thought is (free) operation with ideas, which are neither created by it nor present in it from the first, but given to it by perception, that, consequently, the cognitive process begins with sensation and so its first attitude is a passive one. From the standpoint of the Cartesian problem, which he solves in a sense opposite to Descartes, Locke supplements the empiricism of Bacon by basing it on a psychologically developed theory of knowledge. That in the course of the inquiry he introduces a new principle, which causes him to diverge from the true empirical path, will appear in the sequel.

The question "How our ideas come into the mind" receives a negative answer (in the first book of the Essay): 1869, and an exposition of his theory of substance by De Fries in 1879. Victor Cousin's Philosophie de Locke has passed through six editions. [Among more recent English discussions reference may be made to Green's Introduction to Hume's Treatise on Human Nature, 1874 (new ed. 1890), which is a valuable critique of the line of development, Locke, Berkeley, Hume; Fowler's Locke, in the English Men of Letters, 1880; and Fraser's Locke, in Blackwood's Philosophical Classics, 1890.-TR.]

"There are no innate principles in the mind "* The doctrine of the innate character of certain principles is based on their universal acceptance. The asserted agreement of mankind in regard to the laws of thought, the principles of morality, the existence of God, etc., is neither cogent as an argument nor correct in fact. In the first place, even if there were any principles which everyone assented to, this would not prove that they had been created in the soul; the fact of general consent would admit of a different explanation. Granted that no atheists existed, yet it would not necessarily follow that the universal conviction of the existence of God is innate, for it might have been gradually reached in each case through the use of the reason— might have been inferred, for instance, from the perception of the purposive character of the world. Second, the fact to which this theory of innate ideas appeals is not

No moral rule can be cited which is respected by all nations. The idea of identity is entirely unknown to idiots and to children. If the laws of identity and contradiction were innate they must appear in consciousness prior to all other truths; but long before a child is conscious of the proposition "It is impossible for the same thing to be and not to be," it knows that sweet is not bitter, and that black is not white. The ideas first known are not general axioms and abstract concepts, but particular impressions of the senses. Would nature write so illegible a hand that the mind must wait a long time before becoming able to read what had been inscribed upon it? It is often said, however, that innate ideas and principles may be obscured and, finally, completely extinguished by habit, education, and other extrinsic circumstances. Then, if they

According to Fox Bourne this first book was written after the others. Geil (Ueber die Abhängigkeit Lockes von Descartes, Strassburg, 1887, chap. iii.) has endeavored to prove that, since the arguments controverted are wanting in Descartes, the attack was not aimed at Descartes and his school, but at native defenders of innate ideas, as Lord Herbert of Cherbury and the English Platonists (Cudworth, More, Parker, Gale). That along with these the Cartesian doctrine was a second and chief object of attack is shown by Benno Erdmann in his discussion of the treatises by G. Geil and R. Sommer (Lockes Verhältnis zu Descartes, Berlin, 1887) in the Archiv fur Geschichte der Philosophie, ii. pp. 99-121.

gradually become corrupted and disappear, they must at least be discoverable in full purity where these disturbing influences have not yet acted; but it is especially vain to look for them in children and the ignorant. Perhaps, however, these possess such principles unconsciously; perhaps they are imprinted on the understanding, without being attended to? This would be a contradiction in terms. To be in the mind or the understanding simply means "to be understood" or to be known; no one can have an idea without being conscious of it. Finally, if the attempt be made to explain "originally in the mind" in so wide a sense that it would include all truths which man can ever attain or is capable of discovering by the right use of reason, this would make not only all mathematical principles, but all knowledge in general, all sciences, and all arts innate; there would be no ground even for the exclusion of wisdom and virtue. Therefore, either all ideas are innate or none

This is an important alternative. While Locke decides for the second half of the proposition, Leibnitz defends the first by a delicate application of the concept of unconscious representation and of implicit knowledge, which his predecessor rejects out of hand.

Locke's positive answer to the question concerning the origin of ideas is given in his second book. Ideas are not present in the understanding from the beginning, nor are they originated by the understanding, but received through sensation. The understanding is like a piece of white paper on which perception inscribes its characters. All knowledge arises in experience. This is of two kinds, derived either from the external senses or the internal sense. The perception of external objects is termed Sensation, that of internal phenomena (of the states of the mind itself) Reflection. External and internal perception are the only windows through which the light of ideas penetrates into the dark chamber of the understanding. The two are not opened simultaneously, however, but one after the other; since the perceptions of the sensible qualities of bodies, unlike that of the operations of the mind itself, do not require an effort of attention, they are the earlier. The child receives ideas of sen