Concerning that which cannot be talked about, we should not say anything.

A main cause of philosophical disease-an unbalanced diet: one nourishes one's thinking with only one kind of example.

It is possible--indeed possible even according to the old conception of logic--to give in advance a description of all 'true' logical propositions. Hence there can never be surprises in logic.

Don't ask what it means, but rather how it is used.

When one is frightened of the truth then it is never the whole truth that one has an inkling of.

Courage, not cleverness; not even inspiration, is the grain of mustard that grows up to be a great tree.

A man will be imprisoned in a room with a door that's unlocked and opens inwards; as long as it does not occur to him to pull rather than push it.