Alexander Pruss's Blog

Theistic Natural Law (TNL) theory seems to be subject to the Euthyphro problem much as divine command theory (DCT) is. On DCT, the Euthyphro...

The kids and I are big Star Trek fans (well, the 5-year-old is just a fan, not a big fan, as yet), and my son wanted to have Captain Proton...

Suppose, as seems possible, that every day for eternity you will toss a coin and get heads. Then that you will get heads on every future da...

A controversial principle in Catholic moral theology is the principle of “counseling the lesser evil”, sometimes confusingly (or confusedly)...

You are trying to get a permit that you are both morally and legally entitled to, but an official requires a bribe to give you the permit. A...

A question about Double Effect that hasn’t been sufficiently handled is in what way, if any, the good effects of bad effects are screened of...

This summer, the big kids and I built a practice machine for the Junior Classical League's Certamen competition, based on an Arduino (c...

Suppose a cause C produces horses, in the following way: When C produces a horse, a horse instantly comes into existence made out of som...

Zeno wants Alice dead and he has the following plan. He slows down Alice’s functioning—say, by cooling her or by sending her around the eart...

I find very persuasive arguments like this: If theory T is true, then whether I exist now depends on some future events. Facts about wha...

Suppose you and I are adding up a column of expenses, but our only interest is the last digit for some reason. You and I know that we are ep...

Causal finitism lets you give a metaphysical definition of the finite . Here’s something I just noticed. This yields a metaphysical definiti...

Assuming the Peano Axioms of arithmetic are consistent, we know that there are infinitely many sets that satisfy them. Which of these infini...

Suppose I say that Jim yelled in delight at 12:31. But in fact he did so at 12:32. Then I said something false but approximately true. Now,...

A well-known problem, noticed by Meirav, is that it is difficult to distinguish hope from despair. Both the hoper and the despairer are unsu...