Great advantage is drawn from knowledge of your adversary, and when you know the measure of his intelligence and character, you can use it to play on his weakness.
Frederick The GreatA man, who can, in cold blood, hunt and torture a poor, innocent animal, cannot feel much compassion for the distress of his own species.
Frederick The GreatI am up and about when I am ill, and in the most appalling weather. I am on horseback when other men would be flat out on their beds, complaining. We are made for action, and activity is the sovereign remedy for all physical ills.
Frederick The Great