Note (return) — Chapter X

Science is, then, according to Plato, the knowledge of universal, necessary, unchangeable, and eternal ideas. The simple cognition of the concrete phenomena of the universe is not regarded by him as real knowledge. "Science, or real knowledge, belongs to Being, and ignorance to non-Being." Whilst that which is conversant only "with that which partakes of both--of being and non-being--and which can not be said either to be or not to be"--that which is perpetually "becoming," but never "really is," is "simply opinion, and not real knowledge." 518 And those only are "philosophers" who have a knowledge of the really-existing, in opposition to the mere seeming; of the always-existing, in opposition to the transitory; and of that which exists permanently, in opposition to that which waxes and wanes--is developed and destroyed alternately. "Those who recognize many beautiful things, but who can not see the Beautiful itself, and can not even follow those who would lead them to it, they opine, but do not know. And the same may be said of those who recognize right actions, but do not recognize an absolute righteousness. And so of other ideas. But they who look at these ideas--permanent and unchangeable ideas--these men really know." 519 Those are the true philosophers alone who love the sight of truth, and who have attained to the vision of the eternal order, and righteousness, and beauty, and goodness in the Eternal Being. And the means by which the soul is raised to this vision of real Being (τὸ ὄντως ὄν) is THE SCIENCE OF REAL KNOWLEDGE.