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

There are only two forces that unite men - fear and interest

Men are moved by two levers only: fear and self interest.

There are only two forces that unite men - fear and interest.

Someone says, "Boys will be boys"; he forgot to add, "Boys will be men

Do you know what astonished me most in the world? The inability of force to create anything. In the long run, the sword is always beaten by the spirit.