Goethe on self-knowledge, 6

Tell me with whom you associate, and I will
tell you who you are. If I know what you occupy
yourself with, I know what you can become.

Sage mir, mit wem du umgehst, so sage ich dir, wer du
bist; weiß ich, womit du dich beschäftigst, so weiß ich,
was aus dir werden kann.

-Maxims and reflections, No. 459
Translation by Goethe Global.

No. 3430