Take another set of nuclear properties, {being square, being round}, and the two principles give us the round square.
Rawls deliberately invokes Kantian rationalism (or anti-sentimentalism) in explaining the intellectual or theoretical motivation behind his construction, and the two principles of justice that he argues would be agreed upon under the contractual conditions he specifies represent a kind of egalitarian political liberalism.
In 1858 Abraham Lincoln and Stephen Douglas clashed over slavery, equality and what Lincoln called "the eternal struggle" over right and wrong – "The two principles that have stood face to face from the beginning of time," in Lincoln's words.
"Neither principle is sufficient in and of itself and, in tandem, the two principles operate as safeguards against abuse".
Russell's philosophical idea, and here he followed Frege, was that the axioms express basic logical truths, and other logical truths are derived from these through modus ponens and universal generalization, the two principles Frege had identified.
And at the heart of the two principles is the company's co-founder and chief executive, Charles Liang, who obsesses over every detail of the business.
The second fundamental comparison in the first part of the original position is between the two principles and the principle of restricted utility, which is identical to Rawls's two principles except that the difference principle is replaced with a principle of average utility to regulate the distribution of wealth and income, constrained by a social minimum.
After agreeing on the two principles and a principle of just savings, the parties then proceed further through the four-stage sequence, tailoring these general principles to the particular conditions of the society of the citizens they represent.
Overall, then, people seem to support both the greater benefit and the worse off principles and appear willing to trade off the two principles.
The contest between Plath and Hughes invokes the contest between the two principles that hedge human existence.
Gottman has published a series of books aimed at improving relationships, including Why Marriages Succeed or Fail, and The Seven Principles for Making Marriage Work.
