Challenges Quote by Carl Sagan

Science is the acceptance of what works and the rejection of what does not. That needs more courage than we might think.

— Jacob Bronowski

“Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really is.”

— Carl Sagan

Science is a mechanism, a way of trying to improve your knowledge of nature. It's a system for testing your thoughts against the universe,…

— Isaac Asimov

Science is not the affirmation of a set of beliefs but a process of inquiry aimed at building a testable body of knowledge constantly…

— Michael Shermer

Science is the outcome of being prepared to live without certainty and therefore a mark of maturity. It embraces doubt and loose ends.

— A.C. Grayling

Science is really about describing the way the universe works in one aspect or another in all branches of science-how a life-form works, how…

— Steven Chu

Science is the search for truth, that is the effort to understand the world: it involves the rejection of bias, of dogma, of revelation,…

— Linus Pauling

Science is a search for basic truths about the Universe, a search which develops statements that appear to describe how the Universe works, but…

— James Randi

Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us…

— Carl Sagan

Science is an enterprise that should be cherished as an activity of the free human mind. Because it transforms who we are, how we…

— Neil deGrasse Tyson

Science is simply a powerful way of understanding what's real and what isn't, what's true and what's not. It can help us determine what…

— Dean Ornish

Science is bound, by the everlasting vow of honour, to face fearlessly every problem which can be fairly presented to it.

— Lord Kelvin