If a tree falls in a forest with no one to hear, does it make a sound?

Yes, it does.

What is the fundamental flaw in human nature? Pride - or greed?

Neither are fundamental flaws, in my opinion. What's flawed is when they are applied improperly - pride felt over things that one didn't actually do (e.g. proud of being English because of something from 400 years ago). But I'd say pride is worse than greed.

Are men naturally polygamous?

I don't think so.

Are women naturally competitive with other women?

Women are people, and people are naturally competitive, so yes, but not only towards other women.

Is the human race essentially good?

If we weren't, we wouldn't have made it this far.

“If all the world’s a stage and we are merely players…” what game are we playing?

Most of us are playing GTA IV right now, I think.

Have you been accused of being a genius?

Yes.

In a society where everyone is “entitled to their opinion”, what place is there for Right and Wrong?

The right to holding an opinion is not carte blanche to hold any opinion and be free of criticism. I have no right to stop someone having an opinion, but I have every right to demonstrate where their opinion is weak, and why I disagree with it. Respecting the right to an opinion does not equal respecting opinions themselves.

Descartes said “I think therefore I am”, how can one prove to themselves that another person exists beyond their imagination?

You can't, but on balance of probability, it's much more likely than everyone else exists than that they don't.

If it was never illegal, would you have killed someone by now?

I hope not, but I don't know for sure.

Does everything in the world have an opposite? If no, give an example.

Monopolar magnets.

How do you define personal honor?

Honesty and respect.

How will you prove that genuine love exists?

I feel it constantly.

Will humankind annihilate itself eventually?

I doubt it. I think we already would have.

Given infinity, will all that is possible eventually happen?

Yes, unless there is an infinite amount of potential stuff TO happen, in which case taradoxes which hurt my head.

Is it better to be uncertain about something forever, or know the truth and be very hurt through all your life?

Know the truth.

If you saw a yellow ball but everyone told you it was purple, who would you believe? If no, what would you do to prove your side?

I would probably go see a doc if it was seriously the case, because I'd guess my eyes were shot.

Is education the filling of a pail, or the lighting of a fire?

It's the lighting of a fire under a pail which is being filled

What would you be willing to do to survive?

A lot. A very, very lot.

Is a lie a lie, if everybody knows it is?

Yes.

Imagine yourself experiencing a car accident. What happens and how does everything look like after the accident?

I don't need to imagine what's happened But they were never serious. There's this sudden massive THUMP and you get thrown around very hard.

Do you ever wonder if you’re already dead and this is just your life flashing before your eyes?

Nope!

Should the conservative Christian husband of an atheist woman allow her to have an abortion if there’s a chance the kid might grow up and turn into a gay Mormon?

No, Mormons are awesome and so are homosexuals!