How you treat telesis between friends?

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Making true friends is what I pursue.Howeveer,we have to say that telesis always exist during your making friends.For example,the one who is rich ,handsome,pretty,outstanding,having perfect academic performance or sth.else reason you want to make friends with him or her.Normal human feelings, your purpose is just want to take advantage of him or her.Exactly we have more or less selfishness.Sb.treat friends as a kind of resourse or wealth.What's your idea about this?