The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.

The most profound insights in mathematics often come from unexpected analogies.

译文：人的一生能有多少个今天呢，今天不去做事实在是可惜了。赏析：今日事今日毕，我们要活在当下，每天都要做些有意义的事情。明天有明天的事情，万事都要等到明天去做，就会蹉跎光阴。

绝不能为了速度或成本而牺牲质量。

别费劲去怼旧事物了。建立新事物吧。