The fact that logic cannot satisfy us awakens an almost insatiable hunger for the irrational.
Most Christians are satisfied living as common Christians, without an insatiable hunger for the deeper things of God.
When she walked through the woods (infrequently now) she picked her way along the path, making way for the boy inside to run along before her. It could be hard to choose the time outside over the time within. Almondine from The Story of Edgar Sawtelle
The individual's most vital need is to prove his worth, and this usually means an insatiable hunger for action. For it is only the few who can acquire a sense of worth by developing and employing their capacities and talents. The majority prove their worth by keeping busy.
Fire, as we have learned to our cost, has an insatiable hunger to be fed. It is a nonliving force that can even locomote itself.
Talent isn't enough. You need motivation-and persistence, too: what Steinbeck called a blend of faith and arrogance. When you're young, plain old poverty can be enough, along with an insatiable hunger for recognition. You have to have that feeling of "I'll show them." If you don't have it, don't become a writer.