数学中最重要的是理解概念，而不仅仅是记忆公式。
The pursuit of pleasure is the only meaningful activity in a meaningless world.
"A novel is a machine for thinking, a way of exploring the world without leaving your chair."
Efficiency is highly overrated； Goofing off is highly underrated. Regularly scheduled sabbaths， sabbaticals， vacations， breaks， aimless walks and time off are essential for top performance of any kind. The best work ethic requires a good rest ethic.
The essence of architecture lies in its ability to transform lives.
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.
