Your enemies can kill you, but only your friends can hurt you.
Peace is freedom in tranquility.
But as to the affection which anyone may have for us, it is the first demand of duty that we do most for him who loves us most; but we should measure affection, not like youngsters, by the ardour of its passion, but rather by its strength and constancy.
It is our duty, my young friends, to resist old age.
The safety of the people shall be the highest law.
Fire and water are not of more universal use than friendship.