top of page
Quote_1.png
Carl Sagan

"Everything not forbidden by the laws of nature, he assured her - quoting a colleague down the hall - is mandatory."

Standard 
 Customized
"Everything not forbidden by the laws of nature, he assured her - quoting a colleague down the hall - is mandatory."

More 

Quote_1.png
Donna Grant

"We seldom make logical mistakes, but often have mistaken logics."

Author Name

Personal Development

Quote_1.png
Donna Grant

"A thousand minus one is never a thousand."

Author Name

Personal Development

Quote_1.png
Donna Grant

"In order to disprove the assertion that all crows are black, one white crow is sufficient."

Author Name

Personal Development

Quote_1.png
Donna Grant

"I was upset. I had always believed logic was a universal weapon and now I realized how its validity depended on the way it was employed."

Author Name

Personal Development

Quote_1.png
Donna Grant

"A narrow hallway is all that separates rational from irrational, creativity from insanity, and intelligence from stupidity."

Author Name

Personal Development

Quote_1.png
Donna Grant

"The existence of a majority logically implies a corresponding minority."

Author Name

Personal Development

Quote_1.png
Donna Grant

"Many people have said to me that I'm a mystic. I find that a bit mysterious. I just use logic and common sense for my philosophies."

Author Name

Personal Development

Quote_1.png
Donna Grant

"Arguments cannot be answered by personal abuse; there is no logic in slander, and falsehood, in the long run, defeats itself."

Author Name

Personal Development

Quote_1.png
Donna Grant

"Logic, n. The art of thinking and reasoning in strict accordance with the limitations and incapacities of the human misunderstanding. The basic of logic is the syllogism, consisting of a major and a minor premise and a conclusion - thus:Major Premise: Sixty men can do a piece of work sixty times as quickly as one man.Minor Premise: One man can dig a post-hole in sixty seconds; Therefore-Conclusion: Sixty men can dig a post-hole in one second.This may be called syllogism arithmetical, in which, by combining logic and mathematics, we obtain a double certainty and are twice blessed."

Author Name

Personal Development

Quote_1.png
Donna Grant

"Pattern Thinking is a type of problem-solving thinking."

Author Name

Personal Development

More 

Quote_1.png
Carl Sagan
"We are all flawed and creatures of our times. Is it fair to judge us by the unknown standards of the future?"

Ethics

Quote_1.png
Carl Sagan
"You squeeze the eyedropper, and a drop of pond water drips out onto the microscope stage. You look at the projected image. The drop is full of life - strange beings swimming, crawling, tumbling; high dramas of pursuit and escape, triumph and tragedy. This is a world populated by beings far more exotic than in any science fiction movie..."

Science

Quote_1.png
Carl Sagan
"Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense."

Science

Quote_1.png
Carl Sagan
"I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students."

Science

Quote_1.png
Carl Sagan
"When you make the finding yourself - even if you're the last person on Earth to see the light - you'll never forget it."

Earth

Quote_1.png
Carl Sagan
"We are all star stuff."

Science

Quote_1.png
Carl Sagan
"The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what's true."

Truth

Quote_1.png
Carl Sagan
"Evolution is adventitious and not foresighted. Only through the deaths of an immense number of slightly maladapted organisms are we, brains and all, here today."

Science

Quote_1.png
Carl Sagan
"However, in part for reasons of organizationalconvenience, modern societies are structured as if all humans had the same sleep requirements; and in many parts of the world there is a satisfying sense of moral rectitude in rising early. The amount of sleep required for buffer dumping would then depend on how much we have both thought and experienced since the last sleep period."

Health

Quote_1.png
Carl Sagan
"Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there--on a mote of dust suspended in a sunbeam."

Philosophy

bottom of page