“Restlessness is discontent — and discontent is the first necessity of progress. Show me a thoroughly satisfied man — and I will show you a failure.”
Original source
The Diary and Sundry Observations of Thomas Alva Edison (1948), p. 110
The Diary and Sundry Observations of Thomas Alva Edison (1948), p. 110
Recommended reading
Curated resources for this quote coming soon.
Verification: Imported from Wikiquote (CC-BY-SA); admin-approved