学习某样东西的最好方法就是把它教给别人。

徒步旅行的真正魅力不在于看到物体，而在于它们激发的情感。

唯一存在的限制是你自己设定的。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

科学家不满足于停留在表面现象。

数据库中最重要的东西是数据模型。如果你把数据模型做对了，其他一切都会随之而来。