The logic of the world is prior to all truth and falsehood.

It is a dogma of the Roman Church that the existence of God can be proved by natural reason. Now this dogma would make it impossible for me to be a Roman Catholic. If I thought of God as another being like myself, outside myself, only infinitely more powerful, then I would regard it as my duty to defy him.

A man's thinking goes on within his consciousness in a seclusion in comparison with which any physical seclusion is an exhibition to public view.

Resting on your laurels is as dangerous as resting when you are walking in the snow. You doze off and die in your sleep.

In philosophy it is always good to put a question instead of an answer to a question. For an answer to the philosophical question may easily be unfair; disposing of it by means of another question is not.

The common behavior of mankind is the system of reference by means of which we interpret an unknown language.

Words are probes. Some reach very deep, some only to a little depth.