“Happiness is a state of activity.”

“Therefore the activity of God, which surpasses all others in blessedness, must be contemplative; and of human activities, therefore, that which is most akin to this must be most of the nature of happiness”

“For the activity of the mind is life”

“Distance does not break off the friendship absolutely, but only the activity of it.”

“The only stable state is the one in which all men are equal before the law.”

“Happiness depends upon ourselves.”

“Happiness belongs to the self-sufficient.”