economics
“The condition of the working class is the real foundation of the political state.”
“The bourgeoisie, historically, has played a most revolutionary part.”
“Labor, n. One of the processes by which A acquires property of B.”
“Quotient, n. A number showing how many times a sum of money belonging to one person is contained in the pocket of another.”
“Bankers are just like anybody else, except richer.”
“Landlords grow rich in their sleep without working, risking, or economizing.”
“The production of too many useful things results in too many useless people.”
“From each according to his ability, to each according to his needs.”
“All wealth is the product of labor.”
“In the long run we are all dead.”
“Commerce is the art of taking advantage of mutual needs.”
“There ain't no such thing as a free lunch.”