Challenges are opportunities in disguise; embrace them with courage.

Memory is the last fortress against forgetting.

最深刻的定理往往源于最简单的观察。

生命太短暂，不能不追逐你的梦想。

The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.

你爱得越多，失去得越多。

 如果一个人从确定性开始，最终将陷入怀疑；但如果他愿意从怀疑开始，最终将得到确定性。