snip
You say that, and then you realise there's an aggressive-passive guy out there who will argue with you, but almost alway give in to you in the end, who likes flat-chested women, and loves kendo and mathematics - but he's not as you in maths, so you've always got something to help him condescendingly with, and way better than you at kendo, so he can get you back into it- because you really need the confidence. And then you'll be screwed.
I tend to hold the belief that there are Two of every single type of person in the world at any time. Of course, if these two people were to meet, they'd either love or hate eachother, which is where the idea of soul-mates and arch-enemies come from.
But anyway, I interpret this in two ways. One- there's got to be a gigantic number of girls with qualities I like, and a large number of girls with many of the qualities I like, and not many of the qualities I dislike. So if I cut it down, there's got to be maybe under a hundred girls that would be an almost perfect match for me, and maybe just above twenty guys. Not good chances in a world of a few billion, but it's better than one.
Two- If I help people who look like they're having trouble- if I pick up trash I see on the street, if I am nice to whoever I can be nice to, regardless of their opinion of me, then there's got to be Some Other Person out there who is putting in the same effort.