The less you need, the freer you become.

Freedom was a thing that shifted as you looked at it, the way a forest is dense with trees up close but from outside, from the empty meadow, you see its true limits. Being free had nothing to do with chains or how wide your cage was.

心理学理论必须通过实践经验的检验。

教育的根是苦的，但果实是甜的。

In the vastness of the universe, our problems seem small, yet our potential for understanding is limitless.