The evening was now far past, and they rose to return home. As they walked along the bank of the Nile, delighted with the beams of the moon quivering on the water, they saw at a small distance an old man, whom the prince had often heard in the assembly of the sages.
“Yonder, said he, is one whose years have calmed his passions, but  but not clouded his reason : let us close the disquisitions of the night, by enquiring what are his sentiments of his own state, that we may know whether youth alone is to struggle with vexation, and whether any better hope remains for the latter part of life.” Here the sage approached and saluted them. They invited him to join their walk, and prattled a while as acquaintance that had unexpectedly met one another. The old man was chearful and talkative, and the way seemed short in his company. He was pleased to find himself not disregarded, accompanied them to their house, and, at the prince’s request, entered with them. They placed him in the seat of honour, and set wine and conserves before him.
” Sir,  said the princess, an evening walk must give to a man of learning, like you, pleasures which ignorance and youth can hardly conceive You know the qualities and the causes of all that you behold, the laws by which the river flows, the periods in which the planets perform their revolutions. Every thing must supply you with contemplation, and renew the consciousness of your own dignity.”
“Lady, answered he, let the gay and the vigorous expect pleasure in their excursions, it is enough that age can obtain ease. To me the world has lost its novelty : I look round, and see what I remember to have seen in happier days. I rest against a tree, and consider, that in the same shade I once disputed upon the  annual overflow of the Nile with a friend who is now silent in the grave. I cast my eyes upwards, fix them on the changing moon, and think with pain on the vicissitudes of life. I have ceased to take much delight in physical truth ; for what have I to do with those things which I am soon to leave?”
” You may at least recreate yourself, said Imlac, with the recollection of an honourable and useful life, and enjoy the praise which all agree to give you.”
” Praise, said the sage, with a sigh, is to an old man an empty sound. I have neither mother to be delighted with the reputation of her son, nor wife to partake the honours of her husband. I have outlived my friends and my rivals.  Nothing is now of much importance ; for I cannot extend my interest beyond myself. Youth is delighted with applause, because it is considered as the earnest of some future good, and because the prospect of life is far extended : but to me, who am now declining to decrepitude, there is little to be feared from the malevolence of men, and yet less to be hoped from their affection or esteem. Something they may yet take away, but they can give me nothing. Riches would now be useless, and high employment would be pain. My retrospect of life recalls to my view many opportunities of good neglected, much time squandered upon trifles, and more lost in idleness and vacancy. I leave many great designs unattempted, and many great attempts unfinished. My mind is bur thened  with no heavy crime, and therefore I compose myself to tranquility ; endeavour to abstract my thoughts from hopes and cares, which, though reason knows them to be vain, still try to keep their old possession of the heart ; expect, with serene humility, that hour which nature cannot long delay ; and hope to possess in a better state that happiness which here I could not find, and that virtue which here I have not attained.”
He rose and went away, leaving his audience not much elated with the hope of long life. The prince consoled himself with remarking, that it was not reasonable to be disappointed by this account ; for age had never been considered as the season of felicity, and, if it was possible to be easy in decline and weakness,  it was likely that the days of vigour and alacrity might be happy : that the noon of life might be bright, if the evening could be calm.
The princess suspected that age was querulous and malignant, and delighted to repress the expectations of those who had newly entered the world. She had seen the possessors of estates look with envy on their heirs, and known many who enjoy pleasure no longer than they can confine it to themselves.
Pekuah conjectured, that the man was older than he appeared, and was willing to impute his complaints to delirious dejection; or else supposed that he had been unfortunate, and was therefore discontented: ” For nothing, said she,  is more common than to call our own condition, the condition of life.” Imlac, who had no desire to see them depressed, smiled at the comforts which they could so readily procure to themselves, and remembered, that at the same age, he was equally confident of unmingled prosperity, and equally fertile of consolatory expedients. He forbore to force upon them unwelcome knowledge, which time itself would too soon impress. The princess and her lady retired ; the madness of the astronomer hung upon their minds, and they desired Imlac to enter upon his office, and delay next morning the rising of the sun.