He is speaking not of the consciousness of happiness, but of the idea
of happiness. When a martyr dies in a good cause, when a soldier falls
in battle, we do not suppose that death or wounds are without pain, or
that their physical suffering is always compensated by a mental
satisfaction. Still we regard them as happy, and we would a thousand
times rather have their death than a shameful life. Nor is this only
because we believe that they will obtain an immortality of fame, or
that they will have crowns of glory in another world, when their
enemies and persecutors will be proportionably tormented. Men are found
in a few instances to do what is right, without reference to public
opinion or to consequences. And we regard them as happy on this ground
only, much as Socrates’ friends in the opening of the Phaedo are
described as regarding him; or as was said of another, “they looked
upon his face as upon the face of an angel.” We are not concerned to
justify this idealism by the standard of utility or public opinion, but
merely to point out the existence of such a sentiment in the better
part of human nature.
The idealism of Plato is founded upon this sentiment. He would maintain
that in some sense or other truth and right are alone to be sought, and
that all other goods are only desirable as means towards these. He is
thought to have erred in “considering the agent only, and making no
reference to the happiness of others, as affected by him.” But the
happiness of others or of mankind, if regarded as an end, is really
quite as ideal and almost as paradoxical to the common understanding as
Plato’s conception of happiness. For the greatest happiness of the
greatest number may mean also the greatest pain of the individual which
will procure the greatest pleasure of the greatest number. Ideas of
utility, like those of duty and right, may be pushed to unpleasant
consequences. Nor can Plato in the Gorgias be deemed purely
self-regarding, considering that Socrates expressly mentions the duty
of imparting the truth when discovered to others. Nor must we forget
that the side of ethics which regards others is by the ancients merged
in politics. Both in Plato and Aristotle, as well as in the Stoics, the
social principle, though taking another form, is really far more
prominent than in most modern treatises on ethics.