QUOTE : Selfishness is one of the principal fruits of the corruption of human nature; and it is obvious that selfishness disposes us to over-rate our good qualities, and to overlook or extenuate our defects. The corruption of human nature therefore being admitted, it follows undeniably, that in all our reckonings, if we would form a just estimate of our character, we must make an allowance for the effects of selfishness. It is also another effect of the corruption of human nature, to cloud our moral sight, and blunt our moral sensibility. Something must therefore be allowed for this effect likewise.