Our greatest stupidities may be very wise.

I sit astride life like a bad rider on a horse. I only owe it to the horse's good nature that I am not thrown off at this very moment.

If I have exhausted the justifications, I have reached bedrock and my spade is turned. Then I am inclined to say: 'This is simply what I do.

Knowledge is in the end based on acknowledgement.

This sort of thing has got to be stopped. Bad philosophers are like slum landlords. It's my job to put them out of business.

I give no sources, because it is indifferent to me whether what I have thought has already been thought before me by another.

You can't think decently if you're not willing to hurt yourself

The eternal life is given to those who live in the present.

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

A picture held us captive. And we could not get outside it, for it lay in our language and language seemed to repeat it to us inexorably.

Wovon man nicht sprechen kann, dar ber mu man schweigen.

If you tried to doubt everything you would not get as far as doubting anything. The game of doubting itself presupposes certainty.

When you are philosophizing you have to descend into primeval chaos and feel at home there.

The mystical is not how the world is, but that it is.

Logic takes care of itself; all we have to do is to look and see how it does it.

Sometimes, in doing philosophy, one just wants to utter an inarticulate sound.

If there were a verb meaning "to believe falsely," it would not have any significant first person, present indicative.

If in life we are surrounded by death, then in the health of our intellect we are surrounded by madness.

Language disguises thought.

Don't think, but look! (PI 66)

Philosophers are often like little children, who first scribble random lines on a piece of paper with their pencils, and now ask an adult 'What is that?

An honest religious thinker is like a tightrope walker. He almost looks as though he were walking on nothing but air. His support is the slenderest imaginable. And yet it really is possible to walk on it.

When we can't think for ourselves, we can always quote

For an answer which cannot be expressed the question too cannot be expressed. The riddle does not exist. If a question can be put at all, then it can also be answered.