7. It might be objected that it is inconsistent to consider the present only, exclusive of the past (as in the case of happiness), when we do not do so in respect of time. For the addition of past to present unquestionably lengthens time. If then we may properly say that time becomes longer, why may we not say the same of happiness?--Were we to do so, we would be applying happiness to divisions of time, while it is precisely to bring out the indivisibility of happiness that it is considered to be measured by the present exclusively. While considering time, in respect of things that have vanished, such as, for instance, the dead, it is perfectly reasonable to reckon the past; but it would be unreasonable to compare past happiness with present happiness in respect to duration, because it would be treating happiness as something accidental and temporary. Whatever might be the length of time that preceded the present, all that can be said of it is, that it is no more. To regard duration while considering happiness is to try to disperse and fraction something that is one and indivisible, something that exists only in the present. That is why time is called an image of eternity, inasmuch as it tends to destroy eternity's permanence through its own dispersion.[57] By abstracting permanence from eternity, and appropriating it, time destroys eternity; for a short period, permanence may survive in association with time; but as soon as it becomes fused with it, eternity perishes. Now as happiness consists in the enjoyment of a life that is good, namely in that which is proper to Essence (in itself), because none better exists, it must, instead of time, have, as a measure, eternity itself, a principle which admits neither increase nor diminution, which cannot be compared to any length, whose nature it is to be indivisible, and superior to time. No comparison, therefore, should be instituted between essence and non-essence, eternity and time, the perpetual and the eternal; nor should extension be predicated of the indivisible. If we regard existence of Essence in itself, it will be necessary to regard it entire; to consider it, not as the perpetuity of time, but as the very life of eternity, a life which instead of consisting of a series of centuries, exists entire since all centuries. NOT EVEN MEMORIES OF THE PAST INCREASE HAPPINESS.