Quote by Kenneth Boulding
"Perseverance is not the absence of doubt but the continuation despite it."
More from Kenneth Boulding
"The only way to survive as a species is to learn to think in terms of systems"
"Love is the only force capable of transforming an enemy into a friend"
"Education is the most powerful weapon which you can use to change the world"
"The future is something which everyone reaches at the rate of 60 minutes an hour, whatever he does"