The idea that a bell rings to signal when investors should get into or out of the market is simply not credible.

Every song is a piece of my diary.

"In the darkest times, even the smallest acts of kindness can shine like stars."

我不是那种会让我的比赛水平下降的人。

I don't believe in pure art.

如果你无法向非科学家解释你的化学研究，说明你理解得还不够深入。