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No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

The quality of an organization's teamwork determines the quality of its results.

We don't inherit the earth from our ancestors; we borrow it from our children.

卡塞爾文獻展必須始終令人驚訝，始終激發思考。

Mathematics is the music of reason.

I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.