Everything that enlarges the sphere of human powers, that shows man he can do what he thought he could not do, is valuable.

Everything that enlarges the sphere of human powers, that shows man he can do what he thought he could not do, is valuable.

任何能扩大人类力量范围，向人类展示他能做他认为自己不能做的事情的东西都是有价值的。

-- Samuel Johnson 塞缪尔·约翰逊