Dad and son climbed the mountain. The son stumbled, bruised his foot against the stone and cried out: -Ah-ah! "Ah-ah ..." came the answer. "Who are you?" The boy asked in surprise. "Who are you? ..." came from far away. - Where are you? Show yourself! - Where are you? Show yourself! "Coward!" - clenching his fists, shouted the boy. "Coward!" Came the reply. "Papa, what's going on?" He asked puzzledly at his father. And he only smiled and shouted: - I respect you! - I respect you! - the answer has followed. - You are the best! - You are the best! They shouted to him. - This phenomenon is called "echo". And I call him "life", because she gives you everything you say and do.