If a man is often the subject of conversation he soon becomes the subject of criticism.

Among all nations, through the darkest polytheism glimmer some faint sparks of monotheism.

Enlightenment is man's emergence from his self-incurred immaturity.

So act that anything you do may become universal law.

Without man and his potential for moral progress, the whole of reality would be a mere wilderness, a thing in vain, and have no final purpose.

Always regard every man as an end in himself, and never use him merely as a means to your ends [i.e., respect that each person has a life and purpose that is their own; do not treat people as objects to be exploited].

Have the courage to use your own reason- That is the motto of enlightenment. "Foundations of the Metaphysics of Morals" (1785)