"One of the greatest pieces of economic wisdom is to know what you do not know." ― John Kenneth Galbraith Topic(s): Wisdom More From John Kenneth Galbraith "War remains the decisive human failure." "Politics is not the art of the possible. It consists in choosing between the disastrous and the unpalatable." "We all agree that pessimism is a mark of superior intellect." More In Wisdom "The superior power of population cannot be checked without producing misery or vice."― Thomas Malthus "One reason the human race has such a low opinion of itself is that it gets so much of its wisdom from writers."― Wilfrid Sheed "For the subtlest folly proceeds from the subtlest wisdom."― John Webster