“Progress is what happens when impossibility yields to necessity.”
Arnold H. Glasgow
“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 Alva Edison
“Discontent is the first necessity of progress.”
“Scientific progress makes moral progress a necessity; for if man's power is increased, the checks that restrain him from abusing it must be strengthened”
Madame de Stael
“If necessity is the mother of invention, discontent is the father of progress”
“Our necessities never equal our wants”
“We live in an age when unnecessary things are our only necessities.”
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