坚持是数学研究的关键，许多伟大的成果来自于长期的奋斗。

I don't let negativity bring me down.

The heart's memory eliminates the bad and magnifies the good.

The biggest risk is not taking any risk. In a world that is changing quickly, the only strategy that is guaranteed to fail is not taking risks.

教育的艺术必须是引导孩子达到能够自我教育的程度。

真相总是丑陋的。

"The hardest part about being immortal is watching everyone you love die."

我们接受自认为应得的爱。