Fearless is not the absence of fear. It’s not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death.

The most important thing in mathematics is to understand the concepts, not just to memorize formulas.

每首歌都有自己的旅程。

我不试图把握市场时机。我只是试图买入被低估的股票。