From Venus in Furs of Leopold von Sacher-Masoch (full text):
And yet a restless, always unsatisfied craving for the nudity of paganism," she interrupted, "but that love, which is the highest joy, which is divine simplicity itself, is not for you moderns, you children of reflection. It works only evil in you. As soon as you wish to be natural, you become common. To you nature seems something hostile; you have made devils out of the smiling gods of Greece, and out of me a demon. You can only exorcise and curse me, or slay yourselves in bacchantic madness before my altar. ...
What does "children of reflection" mean? I'm aware that reflection has meanings like: "careful thought or consideration", "consideration of some subject matter" among others. From the context, it looks like its meaning is close to "modern" or perhaps "children of reason", but I cannot be sure.
P.S.: The original German phrase is "euch Kinder der Reflexion" (can be freely downloaded from Feedbooks)