Aristotle said time is a measure of change, and this movie is about changing in time, through time, while remaining the same person. That's a philosophical paradox and a moral dilemma. But 'Casablanca' says it's possible. You can have both. That's what it means. And that's my wish for you: that you would have both.

Story is about originality, not duplication

When talented people write badly, it's generally for one of two reasons: Either they're blinded by an idea they feel compelled to prove of they're driven by an emotion they must express. When talented people write well, it is generally for this reason: They're moved by a desire to touch the audience.

All writing is discipline, but screenwriting is a drill sergeant.

When we want mood experiences, we go to concerts or museums. When we want meaningful emotional experience, we go to the storyteller.

No civilization, including Plato's, has ever been destroyed because its citizens learned too much.

Deus ex machina not only erases all meaning and emotion, it's an insult to the audience. Each of us knows we must choose and act, for better or worse, to determine the meaning of our lives...Deus ex machina is an insult because it is a lie.