The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.
数学的研究就像空气或重力——它无处不在,你看不到它,但你知道它在那里。
The best way to predict the future is to invent it.
美丽不在于外表完美——而在于自信地生活。
译文:用人如同使用器具,应取其专长。主张根据才能特点任用,反对求全责备。