The Republic by Plato Part 5 Page 47

‘mine’ and ‘not mine’ in the same way to the same thing?

Quite true.

Or that again which most nearly approaches to the condition of the individual — as in the body, when but a finger of one of us is hurt, the whole frame, drawn towards the soul as a centre and forming one kingdom under the ruling power therein, feels the hurt and sympathizes all together with the part affected, and we say that the man has a pain in his finger; and the same expression is used about any other part of the body, which has a sensation of pain at suffering or of pleasure at the alleviation of suffering.

Very true, he replied; and I agree with you that in the best-ordered State there is the nearest approach to this common feeling which you describe.