Man's greatness consists in his ability to do and the proper application of his powers to things needed to be done.

Man's greatness consists in his ability to do and the proper application of his powers to things needed to be done.

人的伟大之处在于他有能力去做，并能恰当地运用他的能力去做需要做的事情。

-- Frederick Douglass 弗雷德里克·道格拉斯