教师必须具有健康的体魄,农人的身手,科学的头脑,艺术的兴味,改革社会的精神。
There was another life that I might have had, but I am having this one.
The laws of physics are not just rules, they are the language of the universe.
真正的领导力意味着做出今天艰难的决定,这些决定将在几十年后获得回报。