Carl Sagan Quotes about Criticism

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Valid criticism does you a favor.

Carl Sagan

Criticism, Doe, Favors

Carl Sagan (2011). “Demon-Haunted World: Science as a Candle in the Dark”, p.57, Ballantine Books

Indeed the reasoned criticism of a prevailing belief is a service to the proponents of that belief; if they are incapable of defending it, they are well advised to abandon it. This self-questioning and error-correcting aspect of the scientific method is its most striking property.

Carl Sagan

Errors, Self Questioning, Criticism

Carl Sagan (1979). “Broca's brain: reflections on the romance of science”, Random House Inc

There are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand the world. There is no such thing as a dumb question.

Carl Sagan

Self, Dumb, Criticism

Carl Sagan Quotes about Criticism

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