如果你出生贫穷，那不是你的错。但如果你死时仍然贫穷，那就是你的错。
If you are born poor it's not your mistake, but if you die poor it's your mistake.
虚无是道的本体，因缘是道的作用。
"The poem is not a closed field, but an open one."
完美数如同完美的人一样稀少。
To be free is to accept responsibility for one's own life.
"The only way to learn mathematics is to do mathematics."
On growth: "All businesses need to be young forever. If your customer base ages with you， you're Woolworth's."