粮食安全是国家安全的基石，我们必须牢牢把握在自己手中。

To study the phenomena of mind from the standpoint of the soul is nothing less than the way to perfect knowledge.

The world is a great play, and we are the actors.

Suspicion against every kind of authority grew out of this experience， an attitude which has never again left me.

学习本质上是刺激-反应连接的问题。

Without imperfection, you or I would not exist.

mRNA technology is just the beginning; the potential for medical applications is limitless.

法律的概念不是一个事物的概念，而是一个复杂的社会实践的概念。