The elegance of a mathematical proof often mirrors the efficiency of the algorithm it describes.
数学证明的优雅常常反映了它所描述的算法的效率。
我们所见所感，只不过是梦中的梦。
You have to be willing to fail to succeed.
人生没有重来，所以要珍惜每一刻。
孩子拿书的方式会告诉你他们对这本书的全部感受。
心灵不过是人类经验的总和，从依赖于经验个体的角度来考虑。
You are not only responsible for what you say, but also for what you do not say.
You can't please everyone, so don't try.