Note 784 — Chapter XIII

Footnote 784: (return) "The study of physics contributes more than any thing else to the tranquillity and happiness of life."--Diogenes Laertius, "Lives," bk. x. ch. xxiv. "For thus it is that fear restrains all men, because they observe many things effected on the earth and in heaven, of which effects they can by no means see the causes, and therefore think that they are wrought by a divine power. For which reasons, when we have clearly seen that nothing can be produced from nothing, we shall have a more accurate perception of that of which we are in search, and shall understand whence each individual thing is generated, and how all things are done without the agency of the gods."--Lucretius, "On the Nature of Things," bk. i. l. 145-150.