And yet consider with me how poor and unsubstantial a thing this glory is! The whole of this earth's globe, as thou hast learnt from the demonstration of astronomy, compared with the expanse of heaven, is found no bigger than a point; that is to say, if measured by the vastness of heaven's sphere, it is held to occupy absolutely no space at all.

Now, of this so insignificant portion of the universe, it is about a fourth part, as Ptolemy's proofs have taught us, which is inhabited by living creatures known to us.

If from this fourth part you take away in thought all that is usurped by seas and marshes, or lies a vast waste of waterless desert, barely is an exceeding narrow area left for human habitation.
You, then, who are shut in and prisoned in this merest fraction of a point's space, do ye take thought for the blazoning of your fame, for the spreading abroad of your renown?
Why, what amplitude or magnificence has glory when confined to such narrow and petty limits?
'Besides, the straitened bounds of this scant dwelling-place are inhabited by many nations differing widely in speech, in usages, in mode of life; to many of these, from the difficulty of travel, from diversities of speech, from want of commercial intercourse, the fame not only of individual men, but even of cities, is unable to reach.

Why, in Cicero's days, as he himself somewhere points out, the fame of the Roman Republic had not yet crossed the Caucasus, and yet by that time her name had grown formidable to the Parthians and other nations of those parts.

Seest thou, then, how narrow, how confined, is the glory ye take pains to spread abroad and extend! Can the fame of a single Roman penetrate where the glory of the Roman name fails to pass?
Moreover, the customs and institutions of different races agree not together, so that what is deemed praise worthy in one country is thought punishable in another.