Old Polish Proverb

There's an old Polish proverb that my mother taught me: the road to hell is paved with good intentions. Doesn't look like I'm going to get that Wii thing. Not a problem, I don't even know what one of them is (or is it are? Isn't a singular form of it Wi and the plural is Wii?) Anyway, I'm learning something new with this and that's what's important. Maybe that should be the 8th habit: people learn for self enrichment.