" Show me the man who has the courage to hide his ill-humour, who bears the whole burden himself, without disturbing the peace of those around him. No: ill-humour arises from an inward consciousness of our own want of merit, from a discontent which ever accompanies that envy which foolish vanity engenders. We see people happy, whom we have not made so, and cannot endure the sight. "

― Johann Wolfgang von Goethe , The Sorrows of Young Werther