Question: When does humor work against my values? Sometimes, I wonder whether my jokes undermine what I value. Is it wrong to poke fun at my friends or myself? Is it wrong to joke about principles that I hold dear? How do I draw the line?

Question: How should a person celebrate his birthday, if at all? And if so, why? Would a rational egoist throw a party and invite people that he doesn't value much, like estranged family members?

Question: Is it rational to do silly things? A friend of mine (non-Objectivist) quoted Ludwig Wittgenstein: "If people never did silly things, nothing intelligent would ever get done." So she thinks it's alright and rational to do silly things once in a while. ... Would it be rational to do silly things consciously (in lab, for instance) in the hope that you might end up discovering / inventing something new?