How do Elizabeth Bennet's ideas on marriage differ from those of her society?

Elizabeth Bennet's ideas about marriage differ from the majority of others in her society because she believes that members of couples ought to get to know each other before making life-long commitments, that they ought to have similar temperaments and interests, and that there really ought to be some love between them.
Compare her ideas to those of her best friend, Charlotte, though. Charlotte thinks that Jane ought to "secure" Bingley even before Jane is sure of her own feelings for the man; she says that there will be time enough later for falling in love. Charlotte, in fact, agrees to marry the very same man whom Elizabeth rejects: the ridiculous Mr. Collins. Despite knowing that the two have nothing in common and that they have known each other for too short a time for there to be any real feeling between them, Charlotte agrees to marry him because he can provide for her materially, because he has a good position on a grand estate, and because he will rescue her from the obscurity and embarrassment of spinsterhood. Charlotte's prudence is more in keeping with Elizabeth's contemporaries than Elizabeth's own ideas about love. It is telling, however, that the most successful relationships in the novel (e.g. the Gardiners', the Bingleys', and the Darcys') are based on Elizabeth's ideas of what is proper in a marriage, and the least successful relationships are based on other things (e.g. the Bennets', the Hursts', and the Wickhams' marriages).