我不完美,我也不声称自己是完美的,但我正在努力。
每一项伟大的工程成就都始于一个清晰的愿景。
Science is about understanding the world, and engineering is about changing it.
You don't have to be a person that's always with somebody to be happy. You can be happy alone.
免费的疫苗比昂贵的治疗更有价值,但更难推广。
关于神,我不知道他们是否存在,也不知道他们是什么样子。
Leadership means making tough decisions today for a better tomorrow.