Nothing is divine but what is agreeable to reason.
Science is organized knowledge. Wisdom is organized life.
Experience without theory is blind, but theory without experience is mere intellectual play.
The only objects of practical reason are therefore those of good and evil. For by the former is meant an object necessarily desired according to a principle of reason; by the latter one necessarily shunned, also according to a principle of reason.
By a lie, a man... annihilates his dignity as a man.
Live your life as though your every act were to become a universal law.
A categorical imperative would be one which represented an action as objectively necessary in itself, without reference to any other purpose.
