The Well of Ascension (Mistborn, #2)

by Brandon Sanderson

He found insanity no excuse, however, for irrational behavior. Some men were blind, others had poor tempers. Still others heard voices. It was all the same, in the end. A man was defined not by his flaws, but by how he overcame them.

“Religions are an expression of hope,” Sazed said. “That hope gives people strength.”

Those who take lightly promises they make to those they love are people who find little lasting satisfaction in life.