数学不仅仅是关于数字、方程、计算或算法:它是关于理解的。
如果你没有失败,说明你还不够努力。
People, even more than things, have to be restored, renewed, revived, reclaimed, and redeemed;never throw out anyone.
人类大脑是进化的产物,人类心智也是如此。
The past is always tense, the future perfect.