Have you ever heard of a skillful general, who intends to surprise a citadel, announcing his plan to his enemy? Conceal your purpose and hide your progress; do not disclose the extent of your designs until they cannot be opposed, until the combat is over. Win the victory before you declare the war. In a word, imitate those warlike people whose designs are not known except by the ravaged country through which they have passed. (Ninon de Lenclos, 1623-1706)
