"I learned that the possessions most esteemed by your fellow creatures were high and unsullied descent united with riches". Who said this?

The creature.....

"The words induced me to turn towards myself. I learned that the possessions most esteemed by your fellow creatures were high and unsullied descent united with riches. A man might be respected with only one of these advantages, but without either he was considered, except in very rare instances, as a vagabond and a slave, doomed to waste his powers for the profits of the chosen few! And what was I? Of my creation and creator I was absolutely ignorant, but I knew that I possessed no money, no friends, no kind of property. I was, besides, endued with a figure hideously deformed and loathsome; I was not even of the same nature as man. I was more agile than they and could subsist upon coarser diet; I bore the extremes of heat and cold with less injury to my frame; my stature far exceeded theirs. When I looked around I saw and heard of none like me. Was I, then, a monster, a blot upon the earth, from which all men fled and whom all men disowned?