Deep thought Quote by Carl Sagan

When you realize that no one really knows what they are doing and that everyone is doing the best they can according to their…

— Carl Sagan

Skepticism is a discipline fit to purify the mind of prejudice and render it all the more apt, when the time comes, to believe…

— George Santayana

Skepticism is like a microscope whose magnification is constantly increased: the sharp image that one begins with finally dissolves, because it is not possible…

— Stanislaw Lem

Skepticism literally means a thoughtful inquiry, the looking at a problem in a disinterested spirit, the surveying of a question from many sides. In…

— Joseph Alexander Leighton

Skepticism is unbelief in causeand effect. A man does not see, that, as he eats, so he thinks: as he deals, so he is,…

— Anonymous

Skepticism means, not intellectual doubt alone, but moral doubt.

— Thomas Carlyle

Skepticism is the chastity of the intellect.

— George Santayana

Skepticism is forever whispering in your ears. You're very new at this. You may be mistaken. You've been wrong before.

— D. J. Grothe

“It seems to me what is called for is an exquisite balance between two conflicting needs: the most skeptical scrutiny of all hypotheses that…

— Carl Sagan

Skepticism is unbelief in cause and effect. A man does not see, that, as he eats, so he thinks: as he deals, so he…

— Ralph Waldo Emerson

Skeptical doesn't have to necessarily be a negative thing. I think if you allow yourself to second guess things and look at things from…

— Aleister Black

Setting skepticism aside, even briefly, can make for very interesting explorations. It is not necessary that we change any of our beliefs. It is…

— Julia Cameron