科学的发展既需要个人的努力，也需要社会的支持。

The core of the poverty trap: Today’s hunger steals tomorrow’s productivity.

"The past is always tense, the future perfect."

We change our behavior when the pain of staying the same becomes greater than the pain of changing. Consequences give us the pain that motivates us to change.

I’ve had to learn to fight all my life—got to learn to keep smiling. If you smile, things will work out.