Saturday Morning Breakfast Cereal.
Actually, I accidentally ripped SMBC off when I made this comic. But I had already made the sketch, and I was like, "whatever".
SMBC loves to make jokes about math, science, religion, philosophy, and penises. Interestingly, Zach Weiner, who writes, draws, and publishes the comics is actually paying his way through college with it. So unless you hate America and the future, go visit his site.
Here's the one I ripped off: Unicorns. See my shame.