Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.
“The great charm and comfort of the system is, that its affects are palpable within a week of trial, which creates a natural stimulus to persevere for few weeks more, when the fact becomes established beyond question.”
“In my line of business, there's no better feeling than having a real nice work that you're really satisfied with.”