does you are means ; consternation, abasement, slavery, gloom, despair, excess of grief, and every vicious action are of the nature of ends. Vices are evils both as ends and as means, since in so far as they cause misery they are means, but in so far as they make it complete, so that they become part of it, they are ends. Of mental goods some are habits, others are dispositions, while others again are neither the one nor the other. The virtues are dispositions, while accomplishments or avocations are matters of habit, and activities as such or exercise of faculty neither the one nor the other. And in general there are some mixed goods : e.g. to be happy in one's children or in one's old age. But knowledge is a pure good. Again, some goods are permanent like the virtues, others transitory like joy and walking-exercise. All good (they say) is expedient, binding, profitable, useful, serviceable, beautiful, beneficial, desirable, and just or right. It is expedient, because it brings about things of such a kind that by their occurrence we are benefited. It is binding, because it causes unity where unity is needed ; profitable, because it defrays what is expended on it, so that the return yields a balance of benefit on the transaction. It is useful, because it secures the use of benefit ; it is serviceable, because the utility it affords is worthy of all praise. It is beautiful, because the good is proportionate to the use made of it ; beneficial, because by its inherent nature it benefits ; choiceworthy, because it is such that to choose it is reasonable. It is also just or right, inasmuch as it is in harmony with law and tends to draw men together.