use that it makes of the instruments furnished it by the body, soul, and mind, becomes instinctive or stupefied; is made virtuous or vicious, wise or ignorant, and places itself in condition to perceive with more or less energy, to understand and to judge with more or less rectitude what there is of goodness, excellence, and justice in sensation, sentiment, or assent; to distinguish, with more or less force and knowledge, good and evil; and not to be deceived at last in what is really pleasure or pain, love or hatred, truth or error. Indeed one feels that the metaphysical doctrine that I have just briefly set forth is nowhere found so clearly expressed, and therefore I do not need to support it with any direct authority. It is only by adopting the principles set down in the Golden Verses and by meditating a long time upon what has been written by Pythagoras that one is able to conceive the _ensemble_. The disciples of this philosopher having been extremely discreet and often obscure, one can only well appreciate the opinions of their master by throwing light upon them with those of the Platonists and Stoics, who have adopted and spread them without any reserve.[378] Man, such as I have just depicted him, according to the idea that Pythagoras had conceived, placed under the dominion of Providence between the past and the future, endowed with a free will by his essence, and being carried along toward virtue or vice with its own movement, Man, I say, should understand the source of the evils that he necessarily experiences; and far from accusing this same Providence which dispenses good and evil to each according to his merit and his anterior actions, can blame only himself if he suffers, through an inevitable consequence of his past mistakes.[379] For Pythagoras admitted many successive existences,[380] and maintained that the present, which strikes us, and the future, which menaces us, are only the expression of the past which has been our work in anterior times. He said that the greater part of men lose, in returning to life, the remembrance of these past existences; but that, concerning himself, he had, by a particular favour of the gods, preserved the memory of them.[381] Thus according to his doctrine, this fatal Necessity, of which man unceasingly complains, has been created by himself through the use of his will; he traverses, in proportion as he advances in time, the road that he has already traced for himself; and according as he has modified it by good or evil, as he sows so to speak, his virtues or his vices, he will find it again more smooth or laborious, when the time will come to traverse it anew.