No one person can possibly combine all the elements supposed to make up what everyone means by friendship.

The sentence argues against an idealized, one-size-fits-all notion of friendship. Because people load the word with many “elements”—emotional support, shared interests, trust, loyalty, candor, sacrifice, and more—no single individual can embody them all in the precise proportions “everyone” imagines. The quote therefore cautions that disappointment often comes from unrealistic expectations rather than from a friend’s moral failure. Implicitly, it recommends a plural and tolerant view of human connection: different friends may meet different needs, and friendship should be judged with an awareness of human limitation. It also hints that the concept of friendship is socially constructed and variable, not a fixed essence.