《孟子·告子章句上·第六节》
孟子说： 要说人本来的性情，则是可以为善的，这就是我所说的人性本善。
孟子曰： 乃若其情，则可以为善矣，乃所谓善也。
Mengzi said: As for what constitutes the original character of human beings, it can do good, and this is what I mean by saying that human nature is inherently good.