So we must lay it down that the association which is a state exists not for the purpose of living together but for the sake of noble actions.
AristotleDifferent men seek after happiness in different ways and by different means, and so make for themselves different modes of life and forms of government.
AristotleWhat has soul in it differs from what has not, in that the former displays life. Now this word has more than one sense, and provided any one alone of these is found in a thing we say that thing is living. Living, that is, may mean thinking or perception or local movement and rest, or movement in the sense of nutrition, decay and growth. Hence we think of plants also as living, for they are observed to possess in themselves an originative power through which they increase or decrease in all spatial directions.
Aristotle