I consider workflow optimisation one of my hobbies. At some point, a friend of mine pointed out how much time I spend trying to optimise work. He pointed me to this quote, and I think it contains a message that people like me need to keep in the back of their head.
The quote comes from someone giving advice on how to write a play. Instead of focussing on planning and organising your work, it argues that we need to focus on doing the work and not giving up. This a friendly reminder to focus on the work rather than the work system.