Have the courage to use your own reason- That is the motto of enlightenment. "Foundations of the Metaphysics of Morals" (1785)
Immanuel KantTwo things strike me dumb: the infinite starry heavens, and the sense of right and wrong in man.
Immanuel KantIt is often necessary to make a decision on the basis of knowledge sufficient for action but insufficient to satisfy the intellect.
Immanuel KantThis spirit of freedom is expanding even where it must struggle against the external obstacles of governments that misunderstand their own function. Such governments are illuminated by the example that the existence of freedom need not give cause for the least concern regarding public order and harmony in the commonwealth. If only they refrain from inventing artifices to keep themselves in it, men will gradually raise themselves from barbarism.
Immanuel Kant