Of absolute verity through the senses we know nothing; our perceptions are
only conventional interpretations of we know not what. For to other living
creatures these same sensations have other meanings than they have to us,
and even the same person is not always affected alike by the same thing;
which then is the true of two differing perceptions we cannot say. And
therefore either there is no such thing as truth, or, at all events, we know
through the senses nothing of it. The only genuine knowledge is that which
transcends appearances, and reasons out what is, irrespective of
appearances,—in other words, the only genuine knowledge is that of the
(atomic) philosopher. And his knowledge is the result of the happy mixture
of his atoms whereby all is in equal balance, neither too hot nor too cold.
Such a man seeing in the mind’s eye the whole universe a tissue of whirling
and interlacing atoms, with no real mystery or terror before or after, will
live a life of cheerful fearlessness, undisturbed by terrors of a world to
come or of powers unseen. His happiness is not in feastings or in gold, but
in a mind at peace. And three human perfections he will seek to attain: to
reason rightly, to speak graciously, to do his duty.