热情很常见。持久力很罕见。
Seeing comes before words. The child looks and recognizes before it can speak.
If you are free, you are not predictable.
A problem well put is half solved.
做数学就是与宇宙对话,寻找我们甚至可能还不知道如何提出的问题的答案。
The greatest wisdom is to know that you know nothing.
重要的不是发生在你身上的事情,而是你如何处理发生在你身上的事情。