In his youth, Saadi decided to be a student for thirty years of his life, then a poet for the next thirty, and a philosopher for the thirty years after that. He died of old age on the precise date the last thirty years had ended. Saadi is still remembered as a polymath, one of the greatest Persian poets of all time and a great Muslim humanist.
- "I fear God and next to God I mostly fear them that fear Him not."
- "To give pleasure to a single heart by a single kind act is better than a thousand head-bowings in prayer."
- "The rose and the thorn, and sorrow and gladness are linked together."
- "When the belly is empty, the body becomes spirit; and when it is full, the spirit becomes body."
- "Every leaf of the tree becomes a page of the sacred scripture once the soul has learnt to read."