perfectible

• He seems to have believed deeply in the idea that humankind is perfectible, and that architecture could play a role in that. —  California Literary Review
• The Left has traditionally assumed that human nature is so malleable, so perfectible, that it can be shaped in almost any direction. —  Darwinian Conservatism by Larry Arnhart
• That liberation is for Lincoln an achievement of reason and temperament embodied in a flawed yet perfectible soul, and immersed in the American experiment in self-government. —  Claremont.org
• Cabet believed that environment determined human nature and that people, whom he saw as perfectible and rational, would produce a perfect society when placed in a perfect environment. —  Conservapedia - Recent changes [en]
• Rather than be burdened by the thought that man's nature is imperfect, these so-called progressives swoon to the thought of the perfectibility of man's nature -- perfectible, that is, if only government is allowed to intrude ever further and impose rules drawn from increasingly abstract speculations about what the good life demands. —  American Thinker

Used in the Same Context