When dealing with the insane, the best method is to pretend to be sane.

Without words, without writing and without books there would be no history, there could be no concept of humanity.

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom.

He reflected deeply, until this feeling completely overwhelmed him and he reached a point where he recognized causes; for to recognize causes, it seemed to him, is to think, and through thought along feelings become knowledge and are not lost, but become real and being to mature.