Metaphysical Beliefs and the Foundations of Modern Economics

[England's] thinkers are again beginning to see, what they had only temporarily forgotten, that a true Psychology is the indispensable scientific basis of Morals, of Politics, of the science and art of Education; that the difficulties of Metaphysics lie at the root of all science; that those difficulties can only be quieted by being resolved, and that until they are resolved, positively whenever possible, but at any rate negatively, we are never assured that any human knowledge, even physical, stands on solid foundation.

John Stuart Mill

No science can be more secure than the unconscious metaphysics which tacitly it presupposes.

Alfred North Whitehead