There are persons whom in my heart I despise, others I abhor. Yet I am not obliged to inform the one of my contempt, nor the other of my detestation. This kind of dissimulation...is a necessary branch of wisdom, and so far from being immoral...that it is a duty and a virtue.
I must study politics and war, that my sons may have the liberty to study mathematics and philosophy, geography, natural history, and naval architecture, navigation, commerce, and agriculture, in order to give their children a right to study painting, poetry, music, architecture, statuary, tapestry and porcelain.