If your self is fortified with knowledge, it is like the zeal of Gabriel; if it is fortified with love, it is like the sound of Israfil.

This profound couplet by Allama Iqbal beautifully contrasts two supreme forms of power: knowledge and love. He suggests that if the self is disciplined by the pursuit of knowledge (Ilm), its power is divine, like the message of Gabriel. But if that same self is bound by the intensity of love (Ishq), its call is equally powerful, like the trumpet blast of Israfil. It's a philosophical debate on where true discipline and ultimate force reside.