It is clear that economics, if it is to be a science at all, must be a mathematical science.


Chapter I, Introduction, p. 38. - The Theory of Political Economy (1871)


It is clear that economics, if it is to be a science at all, must be a mathematical science.

It is clear that economics, if it is to be a science at all, must be a mathematical science.

It is clear that economics, if it is to be a science at all, must be a mathematical science.

It is clear that economics, if it is to be a science at all, must be a mathematical science.