Profitability and sustainability must go hand in hand, or neither will last.

遗传密码的发现是理解生命分子基础的一个里程碑。

科学家不对自然法则负责，但他的工作是找出它们如何运作。

I keep thinking about this river somewhere, with the water moving really fast. And these two people in the water, trying to hold onto each other, holding on as hard as they can, but in the end it’s just too much. The current’s too strong. They’ve got to let go, drift apart.