Who then understands the reciprocal flux and reflux of the infinitely great and the infinitely small, the echoing of causes in the abysses of being, and the avalanches of creation?

Yes, the brutalities of progress are called revolutions

Let us sacrifice one day to gain perhaps a whole life.

Genius: the superhuman in man.

Daring is the price of progress. All splendid conquests are the prize of boldness, more or less.

Change your opinions, keep to your principles; change your leaves, keep intact your roots.

In the vast cosmical changes, the universal life comes and goes in unknown quantities, ... sowing an animalcule here, crumbling a star there, oscillating and ... entangling, from the highest to the lowest, all activities in the obscurity of a dizzying mechanism, hanging the flight of an insect upon the movement of the earth... Enormous gearing, whose first motor is the gnat, and whose last wheel is the zodiac.