如果我们足够明智地正确开发，未来的粮食安全就在海浪之下。

教育者必须是一位心理学家，以便理解儿童。

True progress is measured not just in profits, but in the positive impact we have on people and the planet.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

归纳行为是一种行为模式，而不是推理模式。

绘画是探索可见与不可见之界限的行为。