So you think you know just what goes on inside your head, my friend There is so much more than you and I can comprehend Things that make you laugh, things that make you cry Let you love when you feel like you wanna die There's no answer to the questions that we find inside, my friend But when we start to wonder why, we wind up further behind, my friend All we see has always been shown But there's so many things that I've never known So you think you know, my friend But you don't know, my friend, my friend You think you know But you don't know All for one and one for all It's everything or nothing at all Listen, my friend You don't know No, my friend You don't know