Perfectibility

In a project involving many people, maintainability is a more useful asset than perfectibility.

Thus it was that I beheld, as never before, the awful unreality called evil. The equipollence of God brought to light another glorious proposition, — man’s perfectibility and the establishment of the kingdom of heaven on earth.

In their evangelical zeal, crusaders relied upon a message of the essential morality of cleanliness, a message that was especially effective in stirring religious sentiment and that meshed well with evolutionary models of human perfectibility that were prevalent in the sciences.