It is beyond a doubt that during the sixteenth century, and the years immediately preceding and following it, poisoning had been brought to a pitch of perfection which remains unknown to modern chemistry, but which is indisputably proved by history. Italy, the cradle of modern science, was at that time, the inventor and mistress of these secrets, many of which are lost.

Above all do not ask that justice be just: It is just, because it is justice. The idea of a just justice could have originated only in the brain of an anarchist.

Virtue in women is perhaps a question of temperament.

The fame of surgeons resembles the fame of actors, who live only during their lifetime and whose talent is no longer appreciable once they have disappeared.

We do not attach ourselves lastingly to anything that has not cost us care, labor or longing.

To be happy, a man must love his wife as she chooses to be loved.

If those who are the enemies of innocent amusements had the direction of the world, they would take away the spring, and youth, the former from the year, the latter from human life.