Thank you, Robert Louis Stevenson

"To travel hopefully is a better thing than to arrive, and the true success is to labour."
Virginibus Puerisque, El Dorado

The full quotation is a little more sententious than it's misquoted version ("... better to travel hopefully than to arrive..") but it's nicely constructed. I had forgotten the last half, but it's very apt.  In painting and drawing, the process of making is often more important than the finished item - and sometimes more satisfying.  

R.L.S., 1887, by Sir William Blake Richmond.  Licensed under Creative Commons by the National Portrait Gallery, London