"The greatest glory in living lies not in never falling, but in rising every time we fall."
“生活中最大的荣耀不在于从不跌倒，而在于每次跌倒后都能站起来。”
Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.
道的根本来源于天，如果天不改变，道也不会改变。
I'm the reason your sound won't echo.