Europeans were treated to the refreshing spectacle of a top Eurocrat, Sicco Mansholt, 4th president of the Common Market Comm., who said precisely what he thought—in plain language.

Europeans last week were treated to the refreshing spectacle of a top Eurocrat who said precisely what he thought—in plain language. He is Sicco Leendert Mansholt, 63, a burly 6-ft. 2-in., 191-lb. Dutch farmer, socialist politician and diplomat who took over last month as the fourth president of the…