Premise: It was impossible to help laughing at the funny conflict between Laurie 's chivalrous reluctance to speak ill of womankind , and his very natural dislike of the unfeminine folly of which fashionable society showed him many samples .<br>Jo knew that ` young Laurence ' was regarded as a most eligible parti by worldly mamas , was much smiled upon by their daughters , and flattered enough by ladies of all ages to make a coxcomb of him , so she watched him rather jealously , fearing he would be spoiled , and rejoiced more than she confessed to find that he still believed in modest girls .
Hypothesis: Impossible is a figure of speech here.  It is definitely possible to not laugh at the conflict.