Bertrand Russell, originally published in 1930:
Fear of public opinion, like every other form of fear, is oppressive and stunts growth.
It is difficult to achieve any kind of greatness while a fear of this kind remains strong, and it is impossible to acquire that freedom of spirit in which true happiness consists, for it is essential to happiness that our way of living should spring from our own deep impulses and not from the accidental tastes and desires of those who happen to be our neighbors, or even our relations.
At Google Books, The Conquest of Happiness