The poor are not irrational; they are just as rational as anyone else, but they operate under very different constraints.
Leadership means making tough decisions today that will benefit generations tomorrow.
Adaptability is the most important trait for any business in today's fast-changing world.
The past is a darkness crowded with voices.
In language， there is no one-to-one correspondence between words and the things they refer to.
不要害怕冒险——大多数伟大的发明都来自大胆的实验。