| Ludwig von Mises | In the realm of nature we cannot know anything about final causes, by reference to which events can be explained. But in the field of human actions there is the finality of acting men. Men make choices. They aim at certain ends and they apply means in order to attain the ends sought. | Omnipotent Government | p. 120 | Natural Sciences |
| Ludwig von Mises | Nothing could by more mistaken than the now fashionable attempt to apply the methods and concepts of the natural sciences to the solution of social problems. | Omnipotent Government | p. 120 | Natural Sciences |
| Ludwig von Mises | What makes natural science possible is the power to experiment; what makes social science possible is the power to grasp or to comprehend the meaning of human action. | Money, Method, and the Market Process | p. 9 | Natural Sciences |
| Ludwig von Mises | Science is competent to establish what is. It can never dictate what ought to be. | Planned Chaos | p. 30 | Science |
| Ludwig von Mises | There are no laboratory experiments in human action. | Economic Policy | p. 35 | Science |
| Ludwig von Mises | Science does not give us absolute and final certainty. It only gives us assurance within the limits of our mental abilities and the prevailing state of scientific thought. A scientific system is but one station in an endlessly progressing search for knowledge. | Human Action | p. 7; p. 7 | Science |
| Ludwig von Mises | What matters is not whether a doctrine is new, but whether it is sound. | Planning for Freedom | p. 53 | Science |
| Ludwig von Mises | No science can avoid abstract concepts, and he who abhors them should stay away from science and see whether and how he can go through life without them. | A Critique of Interventionism | p. 89 | Science |
| Ludwig von Mises | There are fads and fashions in the treatment of scientific problems and in the terminology of the scientific language. | The Ultimate Foundation of Economic Science | p. 69 | Science |
| Ludwig von Mises | What life and death are eludes its grasp. | Epistemological Problems of Economics | p. 44 | Science |
| Ludwig von Mises | One has to recognize that science is not metaphysics, and certainly not mysticism; it can never bring us the illumination and the satisfaction experienced by one enraptured in ecstasy. Science is sobriety and clarity of conception, not intoxicated vision. | Epistemological Problems of Economics | p. 46 | Science |
| Ludwig von Mises | Whether we see the greatest value in wisdom or in action, in neither case may we scorn science. It alone shows us the way both to knowledge and to action. Without it our existence would be only vegetative. | Epistemological Problems of Economics | p. 46 | Science |
| Ludwig von Mises | Science is universally human, and not limited by nationality, bound to a particular time, or contingent upon any social class. | Epistemological Problems of Economics | p. 152 | Science |