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

The world is everything that is the case.

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

You learned the concept 'pain' when you learned language.

The fact that we can describe the motions of the world using Newtonian mechanics tell us nothing about the world. The fact that we do, does tell us something about the world.

My propositions serve as elucidations in the following way: anyone who understands me eventually recognizes them as nonsensical, when he has used them--as steps--to climb up beyond them. (He must, so to speak, throw away the ladder after he has climbed up it.) He must transcend these propositions, and then he will see the whole world aright.

If life becomes hard to bear we think of a change in our circumstances. But the most important and effective change, a change in our own attitude, hardly even occurs to us, and the resolution to take such a step is very difficult for us.