Ludwig Wittgenstein

The world of the happy man is a different one from that of the unhappy man.

Not how the world is, is the mystical, but that it is.

The work of the philosopher consists in assembling reminders for a particular purpose.

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

The problems are solved, not by giving new information, but by arranging what we have always known.

The limits of my language are the limits of my world.

What is good is also divine. Queer as it sounds, that sums up my ethics. Only something supernatural can express the Supernatural.

The difficulty in philosophy is to say no more than we know.

The riddle does not exist.

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

Tell me, what do you mean by 'good'? I mean what I mean.

Philosophy is not a theory but an activity. A philosophical work consists essentially of elucidations.

The meaning of the world must lie outside the world.

Logic fills the world, the limits of the world are also its limits.

A serious and good philosophical work could be written consisting entirely of jokes.

Don't for heaven's sake, be afraid of talking nonsense! But you must pay attention to your nonsense.

If people never did silly things nothing intelligent would ever get done.

I don't know why we are here, but I'm pretty sure it is not in order to enjoy ourselves.

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.

The human eye is not a camera.