These wise words by John Lennon is a good reminder for a person like me. I love the song where these words appear. It is called "Beautiful boy". This song is really special for me - I played it around 10 times a day for a year when my little boy Mika was newborn and should sleep. It was his favorite lullaby song, and when the beels starts ringing in the beginning of the song, he instantly stoped crying. WHAT A SONG! Thank you John Lennon.