人需要困扰，困扰是心理健康的必需之物。

The idea of inflation is that the universe underwent a period of extremely rapid expansion in its earliest moments.

"The magic of books is that they can take you anywhere."

"The past is a shadow that follows us, but it does not have to define us."

说别人的坏话是赞美自己的一种不诚实的方式。

Every tyrant who has lived has believed in freedom--for himself.