Don Juan: There are only four questions of value in life, Don Octavio. What is sacred? Of what is the spirit made? What is worth living for, and what is worth dying for? The answer to each is the same: only love.
Don Juan: There are those that do not believe that a single soul born in heaven can split into twin spirits and shoot like falling stars to earth where over oceans and continents their magnetic forces will finally unite them back into one. But, how else to explain love at first sight? We were convinced that there was no other life beneath the sky but ours. We believed that we would never die.
Don Juan: Every woman is a mystery to be solved.
Dr. Paul Showalter: I'm giving him to Bill.
Dr. Jack Michler: This kid is going to do a flamenco number on Bill's head until it looks like a tortilla, and it's going to be on your watch.
Dr. Jack Michler: Sadly, I must report that the last patient I ever treated, the great lover Don Juan DeMarco, suffered from a romanticism which was completely incurable, and even worse, highly contagious.
Don Juan: Every true lover knows that the moment of greatest satisfaction comes when ecstasy is long over and he beholds before him the flower which has blossomed beneath his touch.
Chosen answer: I think the point is that it doesn't matter. He can be Don Juan if he likes - so can anybody - and who is to tell who someone else really is?