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: Al-Hasan ibn Abi-l-Hasan al-Basri <r;, also known as Hasan al-Basri, was a well-known Muslim preacher, theologian, and scholar of Islam who was born in 642 from Persian parents.
