Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.

Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.

我们人类需要，也应该有一个头脑清醒、对世界如何运转有基本了解的公民。

-- Carl Sagan 卡尔·萨根