Philo Judaeus De Sobrietate 3

[3] Since then sobriety is most advantageous to those bodies to which the drinking of wine is naturally suitable, is it not much more so to souls, with which all perishable food is inconsistent; for what thing in human nature can be more noble than a sober mind? what glory can be more glorious? what wealth can be more rich? what authority more powerful? what strength more vigorous? of all admirable things what can be more admirable? Let there only be the eye of the soul fit to act, which is able to penetrate every where and to open every thing, being in no part hindered or dimmed by the suffusion of its own moisture; for being then most exceedingly sharp-sighted as to its comprehension, and looking into wisdom itself, it will meet with images such as are intelligible only by the intellect, the contemplation of which attracts the soul and will not suffer it any longer to turn aside to the objects which belong to the outward senses.