我们感知到的每一种气味都是分子和受体之间复杂的相互作用，理解这种相互作用是理解我们感官体验的关键。
The human brain consists of many specialized circuits that evolved to solve specific problems our ancestors faced during our evolutionary history.
证明某事可能的唯一方法就是去做。
To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
每一本书都是通往另一个世界的门。