It is a mistake, too, to say that the face is the mirror of the soul. The truth is, men are very hard to know, and yet, not to be deceived, we must judge them by their present actions, but for the present only.

There are two levers for moving men, interest and fear.

I no longer listen to what people say, I just watch what they do. Behavior never lies.

Many a one commits a reprehensible action, who is at bottom an honourable man, because man seldom acts upon natural impulse, but from some secret passion of the moment which lies hidden and concealed within the narrowest folds of his heart.

Just as bones, tissues, intestines, and blood vessels are enclosed in a skin that makes it possible to bear the sight of a human being, so the agitations and passions of the soul are wrapped up in vanity: it is the soul's skin.

Our vanity is hardest to wound precisely when our pride has just been wounded.