One of the most effective ways to deal with an adversary or to make a point, is with a quick-witted response or come-back. Some people are exceptionally talented when it comes to such rejoinders or retorts. The best of these involve brevity and pointedness and it is this combination that makes for their effectiveness. Here are a few that I found on the net as I prepared this post. Some I was familiar with and others were new to me: John Montagu, also known as the Earl of Sandwich, and the reformist politician, John Wilkes had a long-standing rivalry. During a heated argument, Montagu scowled at Wilkes and said derisively,…