If no man shall think himself wronged, then is there no more any such thing as wrong. That which makes not man himself the worse, cannot make his life the worse, neither can it hurt him either inwardly or outwardly.
 Marcus Aurelius, Meditations (c. 170 - 180). copy citation

add
Author Marcus Aurelius
Source Meditations
Topic hurting life
Date c. 170 - 180
Language English
Reference
Note Translated by Meric Casaubon
Weblink https://en.wikisource.org/wiki/Marcus_Aurelius_Antoninus_-_His_Meditatio...

Context

“In sum, remember this, that within a very little while, both thou and he shall both be dead, and after a little while more, not so much as your names and memories shall be remaining. VII. Let opinion be taken away, and no man will think himself wronged. If no man shall think himself wronged, then is there no more any such thing as wrong. That which makes not man himself the worse, cannot make his life the worse, neither can it hurt him either inwardly or outwardly. It was expedient in nature that it should be so, and therefore necessary. VIII. Whatsoever doth happen in the world, doth happen justly, and so if thou dost well take heed, thou shalt find it. I say not only in right order by a series of inevitable consequences, but according to justice and as it were by way of equal distribution, according to the true worth of everything.” source