But if the prime of life has more cheerful enjoyment of those very pleasures, in the first place they are but petty objects which it enjoys, as I have said before; then they are those of which old age, if it does not abundantly possess them, is not altogether destitute. As he is more delighted with Turpio Ambivius, who is spectator on the foremost bench, yet he also is delighted who is in the hindmost; so youth having a close view of pleasures is perhaps more gratified; but old age is as much delighted as is necessary in viewing them at a distance. However, of what high value are the following circumstances, that the soul, after it has served out, as it were, its time under lust, ambition, contention, enmities, and all the passions, shall retire within itself, and, as the phrase is, live with itself? But if it has, as it were, food for study and learning, nothing is more delightful than an old age of leisure. I saw Caius Gallus, the intimate friend of your father, Scipio, almost expiring in the employment of calculating the sky and the earth. How often did daylight overtake him when he had begun to draw some figure by night, how often did night, when he had begun in the morning! How it did delight him to predict to us the eclipses of the sun and the moon, long before their occurrence! What shall we say in the case of pursuits less dignified, yet, notwithstanding, requiring acuteness! How Naevius did delight in his Punic war! how Plautus in his Truculentus! how in his Pseudolus! I saw also the old man Livy,[15] who, tho he had brought a play upon the stage six years before I was born, in the consulship of Cento and Tuditanus, yet advanced in age even to the time of my youth. Why should I speak of Publius Licinius Crassus' study both of pontifical and civil law? or of the present Publius Scipio, who within these few days was created chief pontiff? Yet we have seen all these persons whom I have mentioned, ardent in these pursuits when old men. But as to Marcus Cethegus, whom Ennius rightly called the "marrow of persuasion," with what great zeal did we see him engage in the practise of oratory, even when an old man! What pleasures, therefore, arising from banquets, or plays, or harlots, are to be compared with these pleasures? And these, indeed, are the pursuits of learning, which too, with the sensible and well educated, increase along with their age; so that is a noble saying of Solon, when he says in a certain verse, as I observed before, that he grew old learning many things every day--than which pleasure of the mind, certainly, none can be greater.