In a conflict between the heart and the brain, follow your heart.

Love me or hate me, both are in my favor...If you love me, I'll always be in your heart... If you hate me, I'll always be in your mind.

I never really got on that well with Yoko anyway. Strangely enough, I only started to get to know her after John's death.

You collect as much data as you can, you immerse yourself in that data but then you make the decision with your heart.

The world don't need any more songs... As a matter of fact, if nobody wrote any songs from this day on, the world ain't gonna suffer for it... There's enough songs for people to listen to, if they want to listen to songs. For every man, woman and child on earth, they could be sent, probably, each of them, a hundred songs, and never be repeated... Unless someone's gonna come along with a pure heart and has something to say. That's a different story.

Human knowledge consists not only of libraries of parchment and ink - it is also comprised of the volumes of knowledge that are written on the human heart, chiselled on the human soul, and engraved on the human psyche.