当我们为后代规划时，我们应该记住，美德并不是世代相传的。
When we are planning for posterity， we ought to remember that virtue is not hereditary.
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.
最好的肥料是农民在田地上的身影。
Man is defined as a human being and a woman as a female — whenever she behaves as a human being she is said to imitate the male.
The most important thing in a computer system is the file system.