I am as frustrated with society as a pyromaniac in a petrified forest.
—A. Whitney Brown (b.1952) American Comedian, TV Personality
If necessity is the mother of invention, discontent is the father of progress.
—David Rockefeller (1915–2017) American Businessman, Philanthropist
Discontent is the first step in the progress of a man or a nation.
—Oscar Wilde (1854–1900) Irish Poet
Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.
—Thomas Edison (1847–1931) American Inventor, Scientist, Entrepreneur