8.27
But the greatest blessing that befalls the man who yearns to render his favourite a good friend is the necessity of himself making virtue his habitual practice. For one cannot produce goodness in his companion while his own conduct is evil, nor can he himself exhibit shamelessness and incontinence and at the same time render his beloved self-controlled and reverent.
8.28
My heart is set on showing you, Callias, on the basis of olden tales, also, that not only humankind but also gods and demi-gods set higher value on the friendship of the spirit than on the enjoyment of the body.
8.29
For in all cases where Zeus became enamoured of mortal women for their beauty, though he united with them he suffered them to remain mortal; but all those persons whom he delighted in for their souls’ sake he made immortal. Among the latter are Heracles and the Sons of Zeus;Castor and Pollux. and tradition includes others also.