Bounds Quote by Charles Darwin

... science and speculation pass into mystery at last.

— William Mountford

The history of science shows that great mysteries get solved. It may be that there's an answer that humans are too stupid to understand.…

— Neil deGrasse Tyson

It reveals to me the causes of many natural phenomena that are entirely incomprehensible in the light of the generally accepted hypotheses. To refute…

— Galileo Galilei

Speculation, like nature, abhors a vacuum.

— Baruch Spinoza

A theory accepted by 99 percent of scientists may be wrong.

— Tom Bethell

I am of the opinion that all the finer speculations in the realm of science spring from a deep religious feeling, and that without…

— Albert Einstein

But scientists, who ought to know Assure us that it must be so. Oh, let us never, never doubt What nobody is sure about.

— Hilaire Belloc

We have reached a situation where a theory has been accepted as fact by some, and possible contrary evidence is shunted aside. [This is]…

— Robert Shapiro

It is not unscientific to make a guess, although many people who are not in science think it is.

— Richard P. Feynman

Science requires speculation, creativity, and wild ideas.

— Debra Fischer

No particular theory may ever be regarded as absolutely certain.... No scientific theory is sacrosanct...

— Karl Popper

“The same trend is noticeable in the scientific realm: research here is for its own sake far more than for the partial and fragmentary…

— René Guénon