儿童教育是人类最重要的一个问题。

If you don't fail at least 90 percent of the time, you're not aiming high enough.

The beauty of science lies in its ability to explain the natural world.

"Words are my weapons against silence and oppression."

成功的道路是采取大规模、坚定的行动。

倾听是一种参与行为。