“The political problem of mankind is to combine three things: economic efficiency, social justice and individual liberty.”

“I believe that my theory is correct; for whatever be the question upon which I am arguing, whether it be religious, philosophical, political, or economical; whether it affects well-being, morality, equality, right, justice, progress, responsibility, property, labor, exchange, capital, wages, taxes, population, credit, or Government; at whatever point of the scientific horizon I start from, I invariably come to the same thing—the solution of the social problem is in liberty.”

“Justice is the first virtue of social institutions, as truth is of systems of thought. A theory however elegant and economical must be rejected or revised if it is untrue; likewise laws and institutions no matter how efficient and well-arranged must be reformed or abolished if they are unjust. Each person possesses an inviolability founded on justice that even the welfare of society as a whole cannot override. For this reason justice denies that the loss of freedom for some is made right by a greater good shared by others. It does not allow that the sacrifices imposed on a few are outweighed by the larger sum of advantages enjoyed by many. Therefore in a just society the liberties of equal citizenship are taken as settled; the rights secured by justice are not subject to political bargaining or to the calculus of social interests.”

“I doubt if there is any problem in the world today - social, political or economic - that would not find a happy solution if approached in the spirit of the sermon on the mount.”

“Justice is never given; it is exacted and the struggle must be continuous for freedom is never a final fact, but a continuing evolving process to higher and higher levels of human, social, economic, political and religious relationship.”

“Economics is the art of allocating scarce goods among competing demands. The conceit of Marxism was the thought that in Communism, economics would be "abolished"; this was why one did not have to think about the questions of relative privilege and social justice. But the point is that we still have to think about economics, and probably always will. The question, then, is whether we can arrive at a set of normative rules which seek to protect liberty, reward achievement and enhance the social good, within the constraints of "economics".”