运退黄金失色，时来铁也生光。
释义：当运气不好的时候，即便是金子也会失去光辉；而好运来临时，即使是铁也会显得光彩夺目。
Remember that reputation and integrity are your most valuable assets and can be lost in a heartbeat.
In mathematics, you don't understand things. You just get used to them.
The heart of a mystery is not the crime, but the people involved.
The most important thing is to have a child. Everything else is secondary.