" Never depend on the admiration of others. There is no strength in it. Personal merit cannot be derived from an external source. It is not to be found in your personal associations, nor can it be found in the regard of other people. It is a fact of life that other people, even people who love you, will not necessarily agree with your ideas, understand you, or share your enthusiasms. Grow up! Who cares what other people think about you! "

― Epictetus , The Art of Living: The Classical Manual on Virtue, Happiness and Effectiveness