Plato Symposium

But, even within the group that is attracted to handsome boys, some are not moved purely by this Heavenly Love; those who are do not fall in love with little boys……

The sexes were not two as they are now, but originally three in number; there was man, woman, and the union of the two, having a name corresponding to this double nature, which had once a real existence, but is now lost, and the word "Androgynous" is only preserved as a term of reproach. And the reason is that human nature was originally one and we were a whole, and the desire and pursuit of the whole is called love.

but beauty absolute, separate, simple, and everlasting, which without diminution and without increase, or any change, is imparted to the ever-growing and perishing beauties of all other things.

For the beloved is the truly beautiful, and delicate, and perfect, and blessed; but the principle of love is of another nature, and is such as I have described.