He was the idol of his soldiers, a good tactician, but not a great strategist.
He was, however, an admirable tactician, a consummate knight, and he possessed extraordinary vigour and energy of temperament.
One of his favourite places of resort in these years was a club of which Dr Hutton, Dr Black, Dr Adam Ferguson, John Clerk the naval tactician, Robert Adam the architect, as well as Smith himself, were original members, and to which Dugald Stewart, Professor Playfair and other eminent men were afterwards admitted.
But Luxemburg, riding up with his advanced guard from Velaine, decided, after a cursory survey of the ground, to attack the front and both flanks of the Allies' position at once - a decision which few, if any, generals then living would have dared to make, and which of itself places Luxemburg in the same rank as a tactician as his old friend and commander Conde.
As a resourceful political leader, and an adroit, ready, skilful tactician in debate, he has had few equals in American history.