It is not insult from another that causes you pain. It is the part of your mind that agrees with the insult. Agree only with the truth about you, and you are free.
The very essence of truth is plainness and brightness; the darkness and crookedness is our own. The wisdom of God created understanding, fit and proportionable to truth, the object and end of it, as the eye to the thing visible. If our understanding have a film of ignorance over it, or be blear with gazing on other false glitterings, what is that to truth?