Ecclesiastes (Temporal vs. Eternal)
Never ending Appetites
Solomon talks about the vanity of unquenchable appetites that our desires have. He goes into detail from his experience how material possession are just another way to "grasp at the wind".
Solomon's final book is full of lessons on living for what is eternal. After a life full of sin, Solomon looks back with regret and writes about his prodigal time running from God.