那些说话算话的人有一点很天真：他们以为别人也和他们一样。

"We are all apprentices in a craft where no one ever becomes a master."

The world is full of obvious things which nobody by any chance ever observes.

If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."

The most important single aspect of software development is to be clear about what you are trying to build.

只要心意不放纵，就不会出现差错；只要用心不怠惰疏忽，就没有不能坚守的、随意放纵的志向。

历史不是过去，而是现在。我们随身携带着历史。