Able Quote by Roger Bacon

If in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundation of knowledge…

— Roger Bacon

Uncertainty is inevitable at the frontiers of knowledge.

— Joel Achenbach

Our aim as scientists is objective truth; more truth, more interesting truth, more intelligible truth. We cannot reasonably aim at certainty. Once we realize…

— Anonymous

“In fact, certainty exists in very different modes. The kind of certainty afforded by a verification that has passed through doubt is different from…

— Hans-Georg Gadamer

A science only advances with certainty, when the plan of inquiry and the object of our researches have been clearly defined; otherwise a small…

— Jean-Baptiste Say

“Yet, the principle of uncertainty is a bad name. In science or outside of it, we are not uncertain. Our knowledge is merely confined…

— Jacob Bronowski

Do not expect to arrive at certainty in every subject which you pursue. There are a hundred things wherein we mortals. . . must…

— Isaac Watts

The very foundation of science is to keep the door open to doubt. Precisely because we keep questioning everything, especially our own premises, we…

— Carlo Rovelli

“No scientific theory can claim absolutely certainty.”

— David Christian

The most distinctive characteristic which differentiates mathematics from the various branches of empirical science, and which accounts for its fame as the queen of…

— Carl Gustav Hempel

Scientists do not believe in fundamental and absolute certainties. For the scientist, certainty is never an end, but a search; not the ordering of…

— Ashley Montagu

We want to have certainties and no doubts- results and no experiments- without even seeing that certainties can arise only through doubt and results…

— Carl Jung