There are so many highly esteemed ones who became miserable and humiliated just because of their bad temper and morals; and humble people who have attained eminence and the highest honors because of good temper and morals.
The relation of patience to iman is like the relation of the head to the body. If the head is chopped off, the body becomes useless. Then he raised his voice and said: Certainly, the one who has no patience has no iman, and patience is like a riding-beast that nevers gets tired.