科学家不是给出正确答案的人，而是提出正确问题的人。
The only real death is the death of the spirit.
When public speaking， pause frequently. Pause before you say something in a new way， pause after you have said something you believe is important， and pause as a relief to let listeners absorb details.
The people who get on in this world are the people who get up and look for circumstances they want, and if they cannot find them, make them.
Success is the sum of small efforts repeated day in and day out.