你给予的越多,得到的就越多
数学不是一门演绎科学——那是陈词滥调。当你试图证明一个定理时,你不仅仅是列出假设然后开始推理。你所做的是反复试验、实验和猜测。
Thinking is the highest action.
Success is no accident. It is hard work, perseverance, learning, studying, sacrifice and most of all, love of what you are doing.