Sheldon Cooper: Did you know that if gravity were slightly more powerful, the universe would collapse into a ball?

Mary Cooper: I did not.

Sheldon Cooper: Also, if gravity were slightly less powerful, the universe would fly apart and there would be no stars or planets.

Mary Cooper: Where you going with this, Sheldon?

Sheldon Cooper: It's just that gravity is precisely as strong as it needs to be. And if the ratio of the electromagnetic force to the strong force wasn't one percent, life wouldn't exist. What are the odds that would happen all by itself?

Mary Cooper: Why are you trying to convince me to believe in God? You don't believe in God.

Sheldon Cooper: I don't, but the precision of the universe at least makes it logical to conclude there's a creator.

Mary Cooper: Baby, I appreciate what you're trying to do, but... logic is here. (points at her head) And my problem is here. (touches her chest)

Sheldon Cooper: Well, there are 5 billion people on this planet and you're the perfect mom for me. What are the odds of that?

Mary Cooper: Oh. Thank you, Lord, for this little boy.

Sheldon Cooper: I knew I could fix it.

Mary Cooper: Maybe it was you and the Lord.

Sheldon Cooper (narration): I don't like sharing credit, but I knew in that moment it wasn't the appropriate time to say it.