Fifty Questions That Christians Can't Answer

[Alex]

Not our lives specifically, but the world. It's pretty horrible in some places, and we should do our part to fix it.

In response to the first sentence in your reply I'll simply quote my response above as it still applies.

If that is truly what you believe, then you have already set yourself up for failure. It does not, typically, make much sense to impose unnatainable goals upon yourself.

That's essentially saying "If something can't be accomplished in our lifetime we shouldn't bother at all."