The sky is the limit, and you know that.

Every challenge is an opportunity to learn and grow.

使精神达到玄寂境界，断绝尘世烦恼，这就是涅槃

美好的生活是由爱所激发，由知识所指导的。

The only meaningful way to study learning is through objective measurement.

We have a responsibility to future generations to leave the planet in better shape than we found it.