A tautology's truth is certain, a proposition's possible, a contradiction's impossible.

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

It is so characteristic, that just when the mechanics of reproduction are so vastly improved, there are fewer and fewer people who know how the music should be played.

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.

If we spoke a different language, we would perceive a somewhat different world.

We are asleep. Our Life is a dream. But we wake up sometimes, just enough to know that we are dreaming.

I'm doing philosophy like an old woman, first I'm looking for my pencil, then I'm looking for my glasses, then I'm looking for my pencil again.