The nation behaves well if it treats the natural resources as assets which it must turn over to the next generation increased; and not impaired in value.
The history of mankind interests us only as it exhibits a steady gain of truth and right, in the incessant conflict which it records between the material and the moral nature.
Anyone who renounces the world must love all men, for he renounces their world too. He thus begins to have some inkling of the true nature of man, which cannot but be loved, always assuming that one is its peer.
No one can read the history of astronomy without perceiving that Copernicus, Newton, Laplace, are not new men, or a new kind of men, but that Thales, Anaximenes, Hipparchus, Empodocles, Aristorchus, Pythagorus, Oenipodes, had anticipated them.