I do not hence infer that the actual space between the birth and death of a man will ever be prolonged; but that his sensibility is perfectible, and that the number of ideas which his mind is capable of receiving is indefinite.
"The Complete Poetical Works of Percy Bysshe Shelley Volume III"
Percy Bysshe Shelley Edited by Thomas Hutchinson, M. A.
He believed then that human life was infinitely perfectible, eliminating these conditions?
"Ulysses"
James Joyce
Seeing that he stood in the Liberal interest, the junior could not abandon the Liberal flag; so he seized it and bore it ahead of the time, there where Radicals trip their phantom dances like shadows on a fog, and waved it as the very flag of our perfectible race.
"The Complete Project Gutenberg Works of George Meredith"
George Meredith