Plato

“There is also a third kind of madness, which is possession by the Muses, enters into a delicate and virgin soul, and there inspiring frenzy, awakens lyric....But he, who, not being inspired and having no touch of madness in his soul, comes to the door and thinks he will get into the temple by the help of art--he, I say, and his poetry are not admitted; the sane man is nowhere at all when he enters into rivalry with the madman.”

“...when he looks at Beauty in the only way that Beauty can be seen - only then will it become possible for him to give birth not to images of virtue (because he's in touch with no images), but to true virtue [arete] (because he is in touch with true Beauty). The love of the gods belongs to anyone who has given to true virtue and nourished it, and if any human being could become immortal, it would be he.”

“Love is born into every human being; it calls back the halves of our original nature together; it tries to make one out of two and heal the wound of human nature.”

“Similarly with regard to truth, won't we say that a soul is maimed if it hates a voluntary falsehood, cannot endure to have one in itself, and is greatly angered when it exists in others, but is nonetheless content to accept an involuntary falsehood, isn't angry when it is caught being ignorant, and bears its lack of learning easily, wallowing in it like a pig?”

“Every heart sings a song, incomplete, until another heart whispers back. Those who wish to sing always find a song. At the touch of a lover, everyone becomes a poet.”

“...and when one of them meets the other half, the actual half of himself, whether he be a lover of youth or a lover of another sort, the pair are lost in an amazement of love and friendship and intimacy and one will not be out of the other's sight, as I may say, even for a moment...”

“For to fear death, my friends, is only to think ourselves wise without really being wise, for it is to think that we know what we do not know. For no one knows whether death may not be the greatest good that can happen to man.”

“Poetry is nearer to vital truth than history.”

“…if a man can be properly said to love something, it must be clear that he feels affection for it as a whole, and does not love part of it to the exclusion of the rest.”

“You should not honor men more than truth.”

“No one is more hated than he who speaks the truth.”

“The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom.”