It is certain that there is no living thing which can be altogether inactive and immoveable, but delights in motion of every kind, and in perpetual activity and volition; and this nature, I think it evident, is in all living things. Much more, then, must a rational animal, _i.e._ the nature of man, be in perpetual movement and activity. If, indeed, he is forgetful of himself, and ignorant of what becomes him, all his efforts are directed to serve the uses of the body, and in all his movements he is occupied with his own pleasures and bodily lusts; but if he be one who studies to care or provide for the general good, then, either by consulting for the benefit of the state or by obeying the magistrates, he exerts himself for that, whatever it is, which may seem certainly to promote the public advantage. And if now any one be of such a nature as to understand that there is something better than those things which seem to be corporeal, and so bestow his labour upon wisdom and science, then he will undoubtedly direct all his attention towards pursuits of that kind, that he may, by inquiring into the truth, ascertain the causes and reason of things. As therefore, in this life, one man deems it the highest good to enjoy bodily pleasures, another to consult for the benefit of the community, a third to devote attention to study and learning; so let us inquire whether in that life which is the true one (which is said to be hidden with Christ in God, _i.e._ in that eternal life), there will be for us some such order and condition of existence.