If a man insisted always on being serious, and never allowed himself a bit of fun and relaxation, he would go mad or become unstable without knowing it.
Bio: Umar, also spelled Omar, was one of the most powerful and influential Muslim caliphs in history. He was a senior Sahaba of the Islamic prophet Muhammad. He succeeded Abu Bakr as the second caliph of the Rashidun Caliphate on 23 August 634.