题目

The first and best of victories is for a man to conquer himself; to be conquered by himself is, of all things, the most shameful, says Plato. Self-control is at the root of all the advantages. Let a man give in to his impulses (冲动) and feelings, and from that moment he gives up his moral freedom. A single angry word has lost many a friend. When Socrates found in himself any temper or anger, he would check it by speaking low in order to control himself. If you are conscious of being angry, keep your mouth shut so that you can hold back rising anger. Many a person has dropped dead in如图所示，在△ABC中，∠BAC=90°，AD⊥BC于D，BE平分∠ABC交AD于E，EF∥BC交AC于F，那么AE与CF相等吗？请验证你的结论．