Remember, O Menestratus, that, being a mortal endowed with a circumscribed life, thou hast in thy soul ascended, till thou hast seen endless time, and the infinity of things; and what is to be, and what has been.
Source, in full
Attributed to Metrodorus by Clement of Alexandria, Stromata, V, 14, as translated by Alexander Roberts, James Donaldson, Clement of Alexandria, vol. II, in Ante-Nicene Christian Library: Translations of the Writings of the Fathers Down to A.D. 325, vol. XII, 1869, p. 300.