I cannot doubt that every one of our cognitive faculties,---in short the human mind as a whole,---has been derived and developed, through a gradual process of physical change, out of some lower life in which cognition, properly speaking, had no place. On this view, the distinction between `original' and `derived' reduces itself to that between `Prior' and `Posterior' in development: and the fact that the moral faculty appears somewhat later in the process of evolution than other faculties can hardly be regarded as an argument against the validity of moral intuition; especially since this process is commonly conceived to be homogeneous throughout. Indeed such a line of reasoning would be suicidal; as the cognition that the moral faculty is developed is certainly later in development than moral cognition, and would therefore, by this reasoning, be less trustworthy.