From the inscription on Ozymandias' sunken statue, we can tell a lot about what kind of person he was:
My name is Ozymandias, King of Kings;
Look on my Works, ye Mighty, and despair!
Straight away, we know what kind of man this pharaoh was: arrogant, self-important, and with delusions of grandeur. Our initial impressions are only reinforced when we say the words on the pedestal out loud. These words can only really be delivered in a particular tone of voice, a powerful, thunderous tone that speaks of an all-conquering tyrant used to his every word being obeyed without question.
When he occupied the throne, Ozymandias must have been a very powerful ruler indeed. How else to account for his self-description as “King of Kings”, an epithet usually attributed to Jesus Christ? And then there's his bold, arrogant challenge to “ye Mighty” to look upon his works and despair. It's virtually impossible for these words to be delivered in anything but a particular tone of voice.
Given that Ozymandias is no more, and that his statue is crumbling into the desert sands, the words on his pedestal have a hollow ring to them. After reading them out loud, it is tempting to dissolve into fits of laughter at the sheer arrogance of this long-dead despot, this self-proclaimed “King of Kings”.