A philosopher who is not taking part in discussions is like a boxer who never goes into the ring.

Proof, one might say, does not merely shew that it is like this, but: how it is like this. It shows how 13+14 yield 27.

Suppose someone were to say: 'Imagine this butterfly exactly as it is, but ugly instead of beautiful'?!

No one likes having offended another person; hence everyone feels so much better if the other person doesn't show he's been offended. Nobody likes being confronted by a wounded spaniel. Remember that. It is much easier patiently - and tolerantly - to avoid the person you have injured than to approach him as a friend. You need courage for that.

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

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.

I am my world.