There is no sense in making statements that will not continue to be true after they are made.

Costs merely register competing attractions.

In the long run all producers are forced to use the most efficient methods or give place to others who do.

It is true practically if not altogether without exception that the changes studied by any science tend to equilibrate or neutralize the forces which bring them about, and finally to come to rest.

Sociology isthescience of talk, and there is onlyone law in sociology. Bad talk drives out good.

...even professors of economics, to say nothing of the public, do not generally have scientific minds.

If all properly economic problems were solved once for all . . . the social struggle and strife would . . . [not necessarily] be reduced in amount or intensity . . . in the absence of some moral revolution which could by no means be assumed to follow in consequence of this change itself.