语言是存在的家。在其家中，人居住。那些用语言思考和创造的人是这个家的守护者。

Success is stumbling from failure to failure with no loss of enthusiasm.

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

The most innovative solution is often the one nature already provided.