At this juncture it might be instructive of me to look up at you and say, “Try putting less emotion, and more feeling, into your poems.” The fact that neurobiologists have publicly announced the separation of emotion from feeling should be heartening news to poets everywhere, for it implies that to have feelings is on par with highly sophisticated cognitive systems. Feelings are not subpar. On the other hand, lest we forget, let me repeat: to be more emotional and less cognitive is to be less evolved than the species is able to be. It is to be like a four-year-old child. Feelings seem to represent a place where emotions combine with intelligence and experience to create a highly personal thought process that results in an individual’s worldview.

From the Phaedrus, beginning at 246:

We will liken the soul to the composite nature of a pair of winged horses and a charioteer. Now the horses and charioteers of the gods are all good and of good descent, but those of other races are mixed; and first the charioteer of the human soul drives a pair, and secondly one of the horses is noble and of noble breed, but the other quite the opposite in breed and character. Therefore in our case the driving is necessarily difficult and troublesome.

Continuing at 248:

... that which is best follows after God and is most like him, raises the head of the charioteer up into the outer region and is carried round in the revolution, troubled by the horses and hardly beholding the realities; and another sometimes rises and sometimes sinks, and, because its horses are unruly, it sees some things and fails to see others. The other souls follow after, all yearning for the upper region but unable to reach it, and are carried round beneath, trampling upon and colliding with one another, each striving to pass its neighbor. So there is the greatest confusion and sweat of rivalry, wherein many are lamed, and many wings are broken through the incompetence of the drivers; and after much toil they all go away without gaining a view of reality, and when they have gone away they feed upon opinion. But the reason of the great eagerness to see where the plain of truth is, lies in the fact that the fitting pasturage for the best part of the soul is in the meadow there, and the wing on which the soul is raised up is nourished by this. And this is a law of Destiny, that the soul which follows after God and obtains a view of any of the truths is free from harm until the next period, and if it can always attain this, is always unharmed; but when, through inability to follow, it fails to see, and through some mischance is filled with forgetfulness and evil and grows heavy, and when it has grown heavy, loses its wings and falls to the earth...

Translation by Henry N. Fowler