Ernest Hemingway allegedly stopped his writing sessions in the middle of a sentence so he knew how to start his next session. He stopped writing, even if he could do more.
Julia Cameron teaches to write precisely three pages of stream-of-consciousness journaling a day. Stop journaling, even if you could do more.
I’ve gotten better results studying foreign languages 20 minutes a day for several months than rushing into a new language and studying it for 3 hours a day, then crashing and burning. I stop myself from learning, even if I could do more.
Because burnout and overindulgence stifle progress, and in the long run, moderation leads to more.