We owe almost all our knowledge not to those who have agreed, but to those who have differed.

We owe almost all our knowledge not to those who have agreed, but to those who have differed.

我们几乎所有的知识都不是来自那些持相同意见的人，而是来自那些持不同意见的人。

-- Charles Caleb Colton 英国作家科尔顿