Calvin: Why do you suppose we’re here?Hobbes: Because we walked here.Calvin: No, no. I mean here on Earth.Hobbes: Because Earth can support life.Calvin: No, I mean why are we anywhere? Why do we exist?Hobbes: Because we were born.Calvin: Forget it.Hobbes: I will, thank you.
The classical philosophical tradition gives us an adage that is still hard to improve upon: ex nihilo nihil fit (from nothing comes nothing). Any teacher worth his salt would take a student to task if, in trying to explain why and how a given phenomenon occurred, the student were to say, “well, it just spontaneously happened.” Yet we are expected to be satisfied with precisely that explanation when it comes to the most pressing and fascinating question of all: why is there something rather than nothing?
You and I are contingent in the measure that we had parents, that we eat and drink, and that we breathe. In a word, we don’t explain ourselves. Now if we want to understand why we exist, we cannot go on endlessly appealing to other contingent things. We must come finally to some reality which exists through the power of its own essence, some power whose very nature it is to be.But that whose very nature it is to be cannot, in any sense, be limited or imperfect in being, and this is precisely why Catholic philosophy has identified this non-contingent ground of contingency, this ultimate explanation of the being of the universe, as “God.”