For in the final analysis, our most basic common link is that we all inhabit this small planet. We all breathe the same air. We all cherish our children's futures. And we are all mortal.

每一种真理都需要经过三个阶段：首先被嘲笑，然后被激烈反对，最后被视为自明之理。

科学不仅仅是事实的集合；它是一种思考方式。

煤矿工人不仅仅是在挖土，他们是在挖掘进步。