Value is the most invincible and impalpable of ghosts, and comes and goes unthought of, while the visible and dense matter remains as it was.

- William Stanley Jevons

It seems perfectly clear that Economy, if it is to be a science at all, must be a mathematical science. There exists much prejudice against attempts …

- William Stanley Jevons

PLEASURE and pain are undoubtedly the ultimate objects of the calculus of economics. To satisfy our wants to the utmost with the least effort - to pr…

- William Stanley Jevons

The difficulties of economics are mainly the difficulties of conceiving clearly and fully the conditions of utility.

- William Stanley Jevons

My principal work now lies in tracing out the exact nature and conditions of utility. It seems strange indeed that economists have not bestowed more …

- William Stanley Jevons

Economists can never be free of from difficulties unless they will distinguish between a theory and the application of a theory.

- William Stanley Jevons

Labour once spent has no influence on the future value of any article; it isgone and lost for ever. In commerce bygones are forever bygones; and we a…

- William Stanley Jevons

A little experience is worth much argument; a few facts are better than any theory.

- William Stanley Jevons

A correct theory is the first step towards improvement, by showing what we need and what we might accomplish.

- William Stanley Jevons