Leadership means making tough decisions today for a better tomorrow.
The world is not a problem to be solved; it is a living being to which we belong.
我已将这一原则——每一微小变异若有益便被保存——称为自然选择。
The true sign of intelligence is not knowledge but imagination.
保持谦逊，保持渴望，永远不要停止学习。
The act of creation is an act of defiance.
The boundary between physics and mathematics is not as clear-cut as we might think.