To be human is to be flawed, but it is also to be capable of great change.
作为人类就是有缺陷的，但也意味着有能力进行巨大的改变。
国家财富的增长主要取决于生产力的提高。
A good system design is one that makes it easy to do the right thing and hard to do the wrong thing.
The most important property of a program is whether it accomplishes the intention of its user.
