我们学得越多，就越发现自己的无知。

The deep, personal material of the latter half of your life is your children. You can write about your parents when they're gone, but your children are still going to be here, and you're going to want them to come and visit you in the nursing home.

The child is not a passive recipient of knowledge but an active participant in the learning process.

Psychological concepts must prove their worth in action.

In the wild, every decision can mean the difference between life and death.

诚信在商业中不容妥协。