It is beyond a doubt that all our knowledge begins with experience. – 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. – Kant
To be is to do. – Kant
Thoughts without content are empty, intuitions without concepts are blind. – Kant
Even philosophers will praise war as ennobling mankind, forgetting the Greek who said: ‘War is bad in that it begets more evil than it kills.’ – Kant
Happiness is not an ideal of reason, but of imagination. – Kant