What ardour for study do you not suppose there must have been in Archimedes, who was so occupied in drawing some mathematical figures in the sand, that he was not aware that his city was taken? And what a mighty genius was that of Aristoxenus which, we see, was devoted to music? What fondness, too, for study, must have inspired Aristophanes, to dedicate his whole life to literature! What shall we say of Pythagoras? Why should I speak of Plato and of Democritus, by whom, we see, that the most distant countries were travelled over, on account of their desire for learning? And those who are blind to this have never loved anything very worthy of being known. And here I may say, that those who say that those studies which I have mentioned are cultivated for the sake of the pleasures of the mind, do not understand that they are desirable for their own sakes, because the mind is delighted by them, without the interruption of any ideas of utility, and rejoices in the mere fact ofknowledge, even though it may possibly produce inconvenience. But why need we seek for more instances to prove what is so evident? For let us examine our own selves, and inquire how the motions of the stars, and the contemplation of the heavenly bodies, and the knowledge of all those things which are hidden from us by the obscurity of nature, affect us; and why history, which we are accustomed to trace back as far as possible, delights us; in the investigation of which we go over again all that has been omitted, and follow up all that we have begun. Nor, indeed, am I ignorant that there is a use, and not merely pleasure, in history. What, however, will be said, with reference to our reading with pleasure imaginary fables, from which no utility can possibly be derived? Or to our wishing that the names of those who have performed any great exploits, and their family, and their country, and many circumstances besides, which are not at all necessary, should be known to us? How shall we explain the fact, that men of the lowest rank, who have no hope of ever performing great deeds themselves, artisans in short, are fond of history; and that we may see that those persons also are especially fond of hearing and reading of great achievements, who are removed from all hope of ever performing any, being worn out with old age?
It must, therefore, be understood, that the allurements are in the things themselves which are learnt and known, and that it is they themselves which excite us to learning and to the acquisition of information. And, indeed, the old philosophers, in their fictitious descriptions of the islands of the blessed, intimate the kind of life which the wise pass, whom they imagine to be free from all care, requiring no cultivation or appointments of life as necessary, and doing, and about to do nothing else but devote their whole time to inquiring and learning and arriving at a knowledge of nature. But we see that that is not only the delight of a happy life, but also a relief from misery. Therefore, many men while in the power of enemies or tyrants, many while in prison or in exile, have relieved their sorrow by the study of literature. A great man of this city, Demetrius Phalereus, when he had been unjustly banished from his country, fled to Alexandria, to king Ptolemy; and, as he was very eminent for his knowledge of this philosophy to which we are exhorting you, and had beena pupil of Theophrastus, he wrote many admirable treatises during the time of that unfortunate leisure of his, not, indeed, for any utility to himself, for that was out of his reach, but the cultivation of his mind was to him a sort of sustenance for his human nature.
I, indeed, have often heard Cnæus Aufidius, a man of prætorian rank, of great learning, but blind, say that he was affected more by a regret for the loss of light, than of any actual benefit which he derived from his eyes. Lastly, if sleep did not bring us rest to our bodies, and a sort of medicine after labour, we should think it contrary to nature, for it deprives us of our senses, and takes away our power of action. Therefore, if either nature were in no need of rest, or if it could obtain it by any other means, we should be glad, since even now we are in the habit of doing without sleep, in a manner almost contrary to nature, when we want to do or to learn something.