The most important thing in investing is to know what you own and why you own it.
粮仓充实，民众就能知道礼节；衣食充足，民众就能知道耻辱。
The joy of discovery in mathematics is like solving a puzzle that the universe has left for us.
A work of art is complete when nothing can be added or taken away without damaging it.
我们必须在能源需求和环境保护之间取得平衡。