In law, a man is guilty when he violates the rights of another. In ethics he is guilty if he only thinks of doing so.
Immanuel Kant
Experience without theory is blind, but theory without experience is mere intellectual play.
Immanuel Kant
Morality is not really the doctrine of how to make ourselves happy but of how we are to be worthy of happiness
Immanuel Kant
Fallacious and misleading arguments are most easily detected if set out in correct syllogistic form
Immanuel Kant
Immaturity is the incapacity to use one's intelligence without the guidance of another.
Immanuel Kant
He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.
Immanuel Kant
From such crooked wood as that which man is made of, nothing straight can be fashioned.
Immanuel Kant
All human knowledge thus begins with intuitions, proceeds thence to concepts, and ends with ideas.
Immanuel Kant
Intuition and concepts constitute... the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge.
Immanuel Kant
Seek not the favor of the multitude; it is seldom got by honest and lawful means. But seek the testimony of few; and number not voices, but weigh them.
Immanuel Kant