Ludwig Wittgenstein

"It is now how things are in the world that is mystical, but that it (the world) exists at all....."

"Where two principles really do meet which cannot be reconciled with one another, then each man declares the other a fool and a heretic."

"We feel that even if all possible scientific questions be answered, the problems of life have still not been touched at all."

"The world of those who are happy is different from the world of those who are not."

"In the middle of a conversation, someone says to me out of the blue: 'I wish you luck.' I am astonished; but later I realize that these words connect up with his thoughts about me.And now they do not strike me as meaningless any more."

"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."