TESTING MORAL LAWS I
To test a moral act one can ask: “What would happen if everyone did this?” Or, “Would it be okay for anyone to do this in the same or similar circumstances?” (Cf. Thomas Nagel.)
If what I am about to do is morally correct then, for Kant, it would be morally correct for everyone to do the same thing in the same circumstances.
If an action is morally correct then it is universalizable, that is, it is good for everyone, everywhere, everywhen.