Those who know Sufism are familiar with the Nasruden stories.
In one such story, Nasruden finds himself aboard a ship. Speaking to an English teacher, he says something gramattically incorrect.
"Have you never learned proper English!?" the teacher snaps. Nasruden admits he has not.
"Then half of your life has been wasted!" the teacher huffs.
Some hours later an event happens which causes the ship to begin sinking. Standing next to the teacher as the last lifeboat leaves, Nasruden asks the teacher if he had ever learned to swim. The teacher admits that he has not.
"Then ALL of your life has been wasted." Nasruden says as he jumps overboard.