Never again confuse your vintage with your viticulture, your ullage with your oenology, your sabrage with your cépage. Bask in the admiration of your fellow drinkers, pronounce confidently on the provenance of whatever is in your glass (or your mouth), & hold your own against the most sneering of sommeliers. DO SAY (looking wistfully at your glass): I do wish they d stop corrupting Chablis with oak. It masks that incomparable goût de pierre à fusil. This, of course, means taste of gunflint. DON T SAY Alsatian when talking of wines from Alsace. You must always refer to those wines as from Alsace for, as the great wine writer André Simon once remarked, Alsatian is ze dog.