一件事不一定是真的或假的；它可能既是真的又是假的。

如果我们想保护森林，就必须先了解它们。

Architecture must be a bridge between the past and the future.

In the state of nature, indeed, all men are born equal, but they cannot continue in this equality. Society makes them lose it, and they recover it only by the protection of the laws.

To create is to live twice.

真相很少是纯粹的，也从不简单。

Treat every problem with reason.

行为主义者放在自己面前的规则或衡量标准总是：我能否用"刺激和反应"来描述我所看到的这一行为？