Mathematics is not just a human invention; it has a deep reality that exists independently of us.
The only limit to our realization of tomorrow will be our doubts of today.
人一生中的主要任务是诞生自己,成为他潜在的样子。他努力的最重要产物是他自己的个性。
A tranquil mind is the source of health.
The price of greatness is responsibility.
我总是努力在压力下保持冷静。