"We are all in the gutter, but some of us are looking at the stars."

There is more than one kind of freedom... Freedom to and freedom from. In the days of anarchy, it was freedom to. Now you are being given freedom from. Don't underrate it.

解释：要量力而行，实力达得到就进攻，达不到就撤退。

In chemicals, our greatest challenge is also our greatest opportunity: meeting global needs while protecting the planet.

"The only way to make sense out of change is to plunge into it, move with it, and join the dance."

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

A rat in a maze is free to go anywhere, as long as it stays inside the maze.