[47] No doubt the actual course of Hume's philosophising was determined by his zeal against everything he deemed superstitious. It was this dominant motive which made him less a calm philosopher than a skilful advocate, and laid him open to the influences of the French Deism of his period. How strong the tendency was we may infer from the following anecdote, which occurs in an account of his declining days by his friend and admirer, Dr. Adam Smith (pp. 47-50):—
Hume had been "reading a few days before, Lucian's Dialogues of the Dead: among all the excuses which are alleged to Charon for not entering readily into his boat, he could not find one that fitted him. He then diverted himself with inventing several jocular excuses, which he supposed he might make to Charon, and with imagining the very surly answers which it might suit the character of Charon to return to them. 'Upon further consideration,' said he, 'I thought I might say to him, Good Charon, I have been correcting my works for a new edition. Allow me a little time that I may see how the Public receives the alterations.' But Charon would answer, 'When you have seen the effect of these, you will be for making other alterations. There will be no end of such excuses; so, honest friend, please step into the boat.' But I might still urge, 'Have a little patience, good Charon; I have been endeavouring to open the eyes of the Public. If I live a few years longer, I may have the satisfaction of seeing the downfall of some of the prevailing systems of superstition.' But Charon would then lose all temper and decency. 'You loitering rogue, that will not happen these many hundred years. Do you fancy I will grant you a lease for so long a term? Get into the boat this instant, you lazy loitering rogue!'"
[48] The "Treatise" was written during his youthful three years' residence in France, chiefly at La Flêche. Hume was twenty-seven years old when he published it. See "Life," pp. 6 and 7, and Burton's Life of Hume, Vol. I. pp. 57-124.
[49] This work, the least known of all Hume's writings, but not the least original, is here cited in the not uncommon reprint 2 vols. 8vo, 1817.
[50] It is curious to compare with both Hume and Bacon a brief dictum of S. T. Coleridge. Biog. Lit., last chapter. "Poor unlucky Metaphysics! And what are they? A single sentence expresses the object and thereby the contents of this science. Γνῶθι σεαυτον: et Deum quantum licet et in Deo omnia scibis. Know thyself: and so shalt thou know God, as far as is permitted to a creature, and in God all things. Surely there is a strange—nay, rather a too natural—aversion in many to know themselves." "People," says Guesses at Truth, "can seldom brook contradiction, except within themselves."
[51] Compare Advancement. B. II. with De Augmentis. B. III. Chap. iii.
[52] De Augmentis. B. III. Chap. iv.
[53] Advancement. B. II. (Ed. Basil Montague, Vol. II. p. 134). It is generally an advantage to quote from the enlarged Treatise, the De Augmentis, but in some places the Advancement is more simple and more full.
[54] De Augmentis. B. III. Chap. iv. init.
[55] De Augmentis. B. III. Chap. iv. Ellis and Spedding, iv. 362.