质量不是一种行为，而是一种习惯。

In chemistry, as in life, the most transformative reactions often occur at the boundaries between disciplines.

To turn caring into action, we need to see a problem, see a solution, and see the impact. But complexity blocks all three steps.

Sorrow can be alleviated by good sleep， a bath and a glass of wine.

You're different by nature. You don't have to hide.

这是最好的时代，这是最坏的时代。