I can say with no real sense of irony that existentialism is ruining my life.

I don't see the point in abstract thought.

I suppose part of that is because I never stop thinking. I'm pretty much worn out on thinking and thinking and never getting anywhere. So I tend to try really hard to avoid philosophy for the sake of philosophy, and it still takes up a lot of my time.

Some time ago, a friend and I were discussing the best way to classify footwear, due to some disagreement as to whether a moccasin was a type of sandal. We wound up spending half an hour, each trying to convince the other that shoes don't have sex and follow an evolutionary chain.

This is the kind of trouble that abstract thought with no grounding in common sense will get you.