From Meet Joe Black.

A wit from a father to his daughter I heard maybe 15 years ago. I get it now.

"Love is passion, obsession, someone you can't live without. I say, fall head over heels. Find someone you can love like crazy and who will love you the same way back. How do you find him? Well, you forget your head, and you listen to your heart. And I'm not hearing any heart. Cause the truth is, honey, there's no sense living your life without this. To make the journey and not fall deeply in love, well, you haven't lived a life at all. But you have to try, cause if you haven't tried, you haven't lived. Stay open, who knows? Lightning could strike."