To understand a sentence means to understand a language. To understand a language means to be master of a technique.

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

What Copernicus really achieved was not the discovery of a true theory but of a fertile new point of view.

The real discovery is the one which enables me to stop doing philosophy when I want to. The one that gives philosophy peace, so that it is no longer tormented by questions which bring itself into question.

You can't hear God speak to someone else, you can hear him only when you are being addressed.

Think of words as instruments characterized by their use, and then think of the use of a hammer, the use of a chisel, the use of a square, of a glue pot, and of the glue.

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