I like to be a free spirit. Some don’t like that, but that’s the way I am.

The heart of the educator must be a living flame, a source of warmth and light.

Enjoyment appears at the boundary between boredom and anxiety, when the challenges are just balanced with the person’s capacity to act.

团队的力量大于个人，只有合作才能创造奇迹。

每个时代的统治思想总是统治阶级的思想。

气候变化对海洋生物构成最大威胁，我们必须立即采取行动减轻其影响。

The psychologist must describe, not explain.

我们对明天的唯一限制是我们今天的疑虑。