The most important thing for you to do is to find a few people who are really talented and who you can work with and trust.

Psychology must be a science of observation, not speculation.

There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.

今天对自由民主最严重的威胁不是来自共产主义或法西斯主义等敌对意识形态，而是来自内部——来自民粹主义的兴起和民主规范的侵蚀。

教学的艺术在很大程度上在于唤醒年轻心灵的自然好奇心，并用知识的营养来满足它。

Every truth goes through three stages: first, it is ridiculed; second, it is violently opposed; third, it is accepted as self-evident.

Sustainability is not an option; it’s a responsibility.

数学的美在于它能够以最抽象的术语描述宇宙。

政治制度的力量在于其适应不断变化的环境并吸收新思想和实践的能力。