I'm a student. And today in math class, we had an exercise about probability. So I threw the usual formula: 'A = the persons who are less than 35 years old' meant their number, out of the total. And now that I think of it, it reminds me the saying 'type of people'. You know when you want to describe a person, you say 'he's the rock'n'roll kind of guy' or 'I'm the type of person who would do anything for my art' and maybe other stuff like that... It's as you belong to this number of person out of all the people living on the Earth. Like you belong to the club 500 out of 7 271 994 450 who like apples, I don't know.
Well, what if it wasn't like that or what it wasn't just that? What if you were 1 in the whole wide world? Now of course as I'm saying this, I'm neither justifying nor denying the fact you should or not use that expression. Because that's not the point. The fact is that believe it or not, God created us the way we are. And if you don't, you anyways know that every single one of your genes are very very very very very small and are very very very very very different from just the person next to you.
What I mean is, this is when you first see someone and you try to test him, see what he's like, what he wears, what he likes... That's normal. But also, try to look a bit further. In somebody else or in yourself! You know that once you become friends, once you talk to that person more and more, you see every time another aspect of him. Well, that's the same for yourself. Don't just stay at the first impression, at superficial! Try new things, meet new people, go outside but also stay at home, experience anything that goes into your mind. Enjoy your time! Your energy! Your will! That's what keep us human...
Anyways I philosophized too much. Don't take it too seriously though. :)