Oh, thanks.
Actually it's part of Charlotte's speech. Sorry, it slipped away: "We can all begin freely -- a slight preference is natural enough; but there are very few of us who have heart enough to be really in love without encouragement. In nine cases out of ten, a woman had better shew more affection than she feels. Bingley likes your sister undoubtedly; but he may never do more than like her, if she does not help him on.''