每一行中都隐藏着一个真理。
In every line, there is a hidden truth.
最好的想法来自挫折。最糟糕的是当一切都完美的时候。
Truth is not spoken in anger. Truth is spoken, if it ever comes to be spoken, in love.
The study of mathematics is like air or gravity – it’s everywhere, even if you don’t see it.