As an old man he supported Napoleon ardently until the empire and the ambitions of the emperor became too swollen, and, while he mourned Waterloo, he told his son, General Robert Lennox de St.Luc, who distinguished himself so greatly there and who almost took the chateau of Hougoumont from the English, that it was for the best, and that it was inevitable.

It was the comment of St.Luc, then eighty-five years old and full of experience and wisdom, that a very great man may become too great.
Lennox was noted for his great geniality and his extraordinary capacity for making friends.

Yet there was a strain of remarkable gravity, even austerity, in his character.

There came times when he wished to be alone, to hear no human voices about him.

It was then perhaps that he thought his best thoughts and took, too, his best resolutions.