It is the duty of the inventor to make his work as useful and as accessible as possible to the public.

如果人们有时不做愚蠢的事情，就不会有聪明的事情发生。

【解释】人常常在忧患困苦中，才能磨练意志，增长才干。

常反省自身，少议论他人，是最高级的修养。  

The complexity of software is an essential property, not an accidental one.

英雄是一时的，但传奇是一世的。

There is no such thing as society: there are individual men and women, and there are families.