These illustrations suggest four general maxims, which will prove an adequate preventative of persecution mania if their truth is sufficiently realized. The first is: remember that your motives are not always as altruistic as they seem to yourself. The second is: Don’t overestimate your own merits. The third is: don’t expect others to take as much interest in you as you do yourself. And the fourth is: don’t imagine that most people give enough thought to you to have any desire to persecute you.

Bertrand Russell (1872-1970) English mathematician and philosopher

Conquest of Happiness, Part 1, ch. 8 “Persecution Mania” (1930)
    (Source)