"To discover the meaning of what is called 'social justice' has been one of my chief preoccupations for more than 10 years. I have failed in this endeavour—or rather, have reached the conclusion that, with reference to a society of free men, the phrase has no meaning whatever."
https://en.wikiquote.org/wiki/New_Studies_in_Philosophy%2C_Politics%2C_Economics_and_the_History_of_Ideas