Søren Kierkegaard said this quote
“ Everyone take his revenge on the world. My revenge consists in bearing my distress and anguish enclosed deeply within me while my laughter entertains everyone. If I see someone suffer I give him my sympathy, console him as best I can, and listen to him calmly when he assures me that I am fortunate. If only I can keep this up until the day I die I shall have had my revenge ”