Alfred Marshall quotes - page 2

And very often the influence exerted on a person's character by the amount of his income is hardly less, if it is less, than that exerted by the way in which it is earned. (Alfred Marshall)
But if inventions have increased man's power over nature very much, then the real value of money is better measured for some purposes in labour than in commodities. View quote
Alfred Marshall
Producer's Surplus is a convenient name for the genus of which the rent of land is the leading species. View quote
Alfred Marshall
And thus the law may be worded:- The marginal utility of a commodity to anyone diminishes with every increase in the amount of it he already has. View quote
Alfred Marshall
I have not been able to lay my hands on any notes as to Mathematico-economics that would be of any use to you. I have very indistinct memories of what I used to think on the subject. I never read mathematics now: in fact I have even forgotten how to integrate a good many things. But I know I had a growing feeling in the later years of my work at the subject that a good mathematical theorem dealing with economic hypotheses was very well unlikely to be good economics: and I went more and more on the rules-(1) Use mathematics as a shorthand language, rather than as an engine of inquiry. (2) Keep to them till you have done. (3) Translate into English. (4) Then illustrate by examples that are important in real life. (5) Burn the mathematics. (6) If you can't succeed in (4), burn (3). This last I do often. View quote
Alfred Marshall