学习数学的唯一方法就是做数学。
The universe is full of magical things patiently waiting for our wits to grow sharper.
下一次绿色革命必须既高效又对环境负责。
The minimum wage debate needs more data and less ideology.
The curious paradox is that when I accept myself just as I am, then I can change.
The purification of the soul is more important than the purification of the body.
自然将人类置于两位至高无上的主人——痛苦和快乐的统治之下。