It is not by the absolute ...

It is not by the absolute quantity of produce obtained by either class, that we can correctly judge of the rate of profit, rent, and wages, but by the quantity of labour required to obtain that produce.
It is not by the absolute quantity of produce obtained by either class, that we can correctly judge of the rate of profit, rent, and wages, but by the quantity of labour required to obtain that produce.
 David Ricardo

More phrases

Courage - a perfect sensibility of the measure of danger, and a mental willingness to endure it.
 William Tecumseh Sherman
The same mentality that leads to environmental despoliation, environmental destruction, also leads to damage to people.
 Naomi Oreskes
You can't break poor people mentality. Once you grow up poor, you don't take anything for granted. It can have the negative side also because you can never truly be relaxed.
 Will Smith
The man with the average mentality, but with control, with a definite goal, and a clear conception of how it can be gained, and above all, with the power of application and labor, wins in the end.
 William Howard Taft
I think society had to grow up to the mentality of Peter Norman.
 John Carlos

Quotes from the same author

I have endeavoured to show that the ability to pay taxes depends, not on the gross money value of the mass of commodities, nor on the net money value of the revenue of capitalists and landlords, but on the money value of each man's revenue compared to the money value of the commodities which he usually consumes.
 David Ricardo
Adam Smith, and other able writers to whom I have alluded, not having viewed correctly the principles of rent, have, it appears to me, overlooked many important truths, which can only be discovered after the subject of rent is thoroughly understood.
 David Ricardo
If then the prosperity of the commercial classes, will most certainly lead to accumulation of capital, and the encouragement of productive industry; these can by no means be so surely obtained as by a fall in the price of corn.
 David Ricardo
During the period of capital moving from one employment to another, the profits on that to which capital is flowing will be relatively high, but will continue so no longer than till the requisite capital is obtained.
 David Ricardo