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Carl Sagan Quotes about Challenges

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Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really is. Accordingly, science sometimes requires courage - at the very least the courage to question

Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really is. Accordingly, science sometimes requires courage - at the very least the courage to question the conventional wisdom.

Carl Sagan
Challenges, Dogma, Sometimes
Carl Sagan (2011). “Broca's Brain: Reflections on the Romance of Science”, p.16, Ballantine Books

Whenever our ethnic or national prejudices are aroused, in times of scarcity, during challenges to national self esteem or nerve, when we agonize about our diminished cosmic place and purpose, or when fanaticism is bubbling up around us - then, habits of thought familiar from ages past reach for the controls.

Carl Sagan
Self Esteem, Past, Challenges
Carl Sagan (2011). “Demon-Haunted World: Science as a Candle in the Dark”, p.50, Ballantine Books

We are prodding, challenging, seeking contradictions or small, persistent residual errors, proposing alternative explanations, encouraging heresy. We give our highest rewards to those who convincingly disprove established beliefs.

Carl Sagan
Errors, Giving, Challenges
Carl Sagan (2011). “Demon-Haunted World: Science as a Candle in the Dark”, p.58, Ballantine Books

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