I admit it, I had to look it up. An aphorism is an original thought, spoken or written in a laconic and memorable form. (And a laconic phrase is a very concise or terse statement.) I found these on Huffington Post. If you go there, you can rate them and vote on your favorites.
Obviously, there are a lot more aphorisms about writing out there. Feel free to share some that have inspired you over the years. I have this one on the wall over my desk:
Only a mediocre writer is always at his best. –Somerset Maugham
This next one is my all-time favorite. It might be a little long to qualify as an aphorism, but I think it sums up what it’s like to be a writer.
Life can’t ever really defeat a writer who is in love with writing, for life itself is a writer’s lover until death — fascinating, cruel, lavish, warm, cold, treacherous, constant. –Edna Ferber