Fortify your towns, and above all the Schellenberg, that fort above Donauworth, the importance of which the great Gustavus taught us.

Villars to Max Emanuel, Elector of Bavaria, in 1703, on Gustavus Adolphus of Sweden's capture of Schellenberg on the Danube. It was to be captured again in 1704 by Marlborough after the Elector ignored Villars' advice. Quoted in Winston Churchill, Marlborough: His Life and Times