In science, if an idea is not falsifiable, it is not that…

There are three creative ideas which, each in its turn, have been central to science. They are the idea of order, the idea of…

— Jacob Bronowski

In so far as a scientific statement speaks about reality, it must be falsifiable; and in so far as it is not falsifiable, it…

— Karl Popper

“If they had been, explained Falk, they would have had to come up with a falsifiable hypothesis. For instance, if the hypothesis is that…

— Ori Brafman

“Science, however, is never conducted as a popularity contest, but instead advances through testable, reproducible, and falsifiable theories.”

— Michio Kaku

“A good scientific law or theory is falsifiable just because it makes definite claims about the world. For the falsificationist, If follows fairly readily…

— Alan F. Chalmers

“The difficulties connected with my criterion of demarcation (D) are important, but must not be exaggerated. It is vague, since it is a methodological…

— Karl Popper

“Not only are there meaningless questions, but many of the problems with which the human intellect has tortured itself turn out to be only…

— Percy Williams Bridgman

The problem with intelligent-design theory, is not that it is false but that it is not falsifiable. Not being susceptible to contradicting evidence, it…

— George Will

“Methodological naturalism is a “ground rule” of science today which requires scientists to seek explanations in the world around us based upon what we…

— Robert T. Pennock

Falsifiability for a theory is great, but a theory can still be respectable even if it is not falsifiable, as long as it is…

— Brian Greene

A good scientific theory is one which is falsifiable, which has not been falsified.

— Richard Dawkins

Science does not limit itself merely to what is currently verifiable. But it is interested in questions that are potentially verifiable (or, rather, falsifiable).

— Sam Harris

“We are talking about a programme which claims that ‘processed foods do not contain water’, possibly the single most rapidly falsifiable statement I’ve seen…

— Ben Goldacre

Science is defined in various ways, but today it is generally restricted to something which is experimental, which is repeatable, which can be predicted,…

— Walter Lang

I always say there are two things to be successful. The first is decide exactly what you want - set your goals - and…

— Brian Tracy