Act so that the maxim of your act could be made the principle of a universal law.
Man's greatest concern is to know how he shall properly fill his place in the universe and correctly understand what he must be in order to be a man.
Nature even in chaos cannot proceed otherwise than regularly and according to order.
With men, the state of nature is not a state of peace, but war.
But only he who, himself enlightened, is not afraid of shadows.
Freedom is that faculty that enlarges the usefulness of all other faculties.