I can calculate the motion of heavenly bodies, but not the madness of people.

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

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.

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.

If you treat people right they will treat you right - ninety percent of the time.

I will not look at another's bowl intent on finding fault: a training to be observed.