The Stoics argued that it’s not feelings and pleasure that control our primary impulses but reason—and because of this, reason, like a craftsman, overrides impulse. Sometimes what feels good leads to bad results. What we feel is good for us often isn’t. Reason alone allows us to keep our individual nature (what’s good for me) and universal nature (what’s good for my kind) in harmony.~ From, https://dailystoic.com/oikeiosis/
I believe the key thing which distinguishes us from the other animals is our faculty of reason. If any of my myriad ramblings about Stoicism have peaked your interest, this article is a proper discussion of Stoic ethics.