Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.

There are trivial truths and the great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true.

There are two kinds of truth, small truth and great truth. You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth.

The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.

Never express yourself more clearly than you are able to think.

Of course I don't believe in it. But I understand that it brings you luck whether you believe in it or not.