没有比被爱的惊喜更神奇的惊喜了。

关于教育的斗争不仅仅是经济和政治问题，还涉及民主的本质和未来的意义。

The only source of knowledge is experience.

The most dangerous phrase in the language is, 'We've always done it this way.'

Natural laws govern everything.

Perception is the result of the activity of the five senses; through sensation, we come to know the world.

过去从未死去，它甚至不是过去。