To feed the world, we must first understand it.
在追求数学真理的过程中,我们常常发现更多的问题而非答案。
让男孩们表现良好的最好方法是让他们对有价值的事情保持兴趣。
The whole of life is an act of letting go, but what hurts the most is not taking a moment to say goodbye.
It is dangerous to be right in matters where established men are wrong.
衡量智力的标准是改变的能力。