If anyone is unwilling to descend into himself, because this is too painful, he will remain superficial in his writing. . . If I perform to myself, then it’s this that the style expresses. And then the style cannot be my own. If you are unwilling to know what you are, your writing is a form of deceit.

Logic is not a body of doctrine, but a mirror-image of the world. Logic is transcendental.

Don't get involved in partial problems, but always take flight to where there is a free view over the whole single great problem, even if this view is still not a clear one.

Never stay up on the barren heights of cleverness, but come down into the green valleys of silliness.

One often makes a remark and only later sees how true it is.

Elementary propositions consist of names.

The philosopher is not a citizen of any community of ideas, that is what makes him a philosopher.