唯一存在的限制是你心中的限制。
The only limits that exist are the ones in your mind.
The greatest glory in living lies not in never falling, but in rising every time we fall.
我不想成为明星，我想成为传奇。
爱不是占有，而是奉献。
"With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one—but no one at all—can tell you what to read and when and how."
The power of mathematics is in its abstraction, allowing us to see patterns and connections that are not immediately obvious.
All happiness depends on courage and work.