This document contains quotes from several Christian figures emphasizing the importance of prayer. Leonard Ravenhill states that lack of revival is due to an unwillingness to live without it. Martin Luther and Charles Spurgeon both highlight the significance of prayer, with Spurgeon saying he would rather teach one to pray than ten to preach. Oswald Chambers makes two points: that prayer is greater work than other works, and that people only pray when at their wit's end. Frank Laubach stresses the importance of listening to God over giving him our own ideas in prayer. Martin Luther advocates for keeping prayers concise.