The other day a friend of mine said   He said, the sun's not really yellow   He said, the sun is really red      I said, my friend, what do you mean?   You read that in some magazine?   Next thing you'll say the earth's not green      How can I be sure of you?   When you know the world's always changing   Rearranging, always changing, changing      I said, my friend, how do you do   And what you're saying isn't true   The next thing you'll say the earth is blue      He said, my friend, you're in a dream   And things are never what they seem   Oh, things are never what they seem      How can I be sure anymore?   When the world's always changing   Rearranging, changing