“Charity is system-affirming. It does nothing about the root causes of poverty, criminalization, and racism. It just treats a few of the symptoms selectively. Social justice work is about making it so that no one is poor, homeless, targeted by police, deportable, or exploited.”

2022, May 2022
Source: Executive Order on Advancing Effective, Accountable Policing and Criminal Justice Practices to Enhance Public Trust and Public Safety (May 25, 2022) https://www.whitehouse.gov/briefing-room/presidential-actions/2022/05/25/executive-order-on-advancing-effective-accountable-policing-and-criminal-justice-practices-to-enhance-public-trust-and-public-safety/

How to Meditate: A Practical Guide to Making Friends with Your Mind (2008)

As quoted in A Short History of Progress (2004) by Ronald Wright. This has since been cited as a direct quote by some, but the remark may simply be a paraphrase, as no quotation marks appear around the statement and no earlier publication of this phrasing has been located.
This is perhaps an incorrect quote from Steinbeck's article "A Primer on the '30s." Esquire, June 1960: 85-93.
"Except for the field organizers of strikes, who were pretty tough monkeys and devoted, most of the so-called Communists I met were middle-class, middle-aged people playing a game of dreams. I remember a woman in easy circumstances saying to another even more affluent: 'After the revolution even we will have more, won't we, dear?' Then there was another lover of proletarians who used to raise hell with Sunday picknickers on her property.

"I guess the trouble was that we didn't have any self-admitted proletarians. Everyone was a temporarily embarrassed capitalist. Maybe the Communists so closely questioned by the investigation committees were a danger to America, but the ones I knew—at least they claimed to be Communists—couldn't have disrupted a Sunday-school picnic. Besides they were too busy fighting among themselves."
Disputed
Source: "John Steinbeck once said that socialism never took root in America because the poor see themselves not as an exploited proletariat but as temporarily embarrassed millionaires", [Ronald, Wright, A Short History of Progress, 2004, 124, Anansi Press, Toronto, https://books.google.com/books?id=nzWPFQIEvfEC&q=%22temporarily+embarrassed+millionaires%22#v=snippet&q=%22temporarily%20embarrassed%20millionaires%22&f=false]

Source: Everything Belongs: The Gift of Contemplative Prayer (1999), p. 132

Source: Mockingjay

Source: Kulturphilosophie (1923), Vol. 1 : The Decay and the Restoration of Civilization, Ch. 1 How Philosophy is Responsible for the Collapse of Civilization
Context: The ethical ideas on which civilization rests have been wandering about the world, poverty-stricken and homeless. No theory of the universe has been advanced which can give them solid foundation; in fact not one has made its appearance which can claim for itself solidity and inner consistency. The age of philosophical dogmatism had come to an end, and after that nothing was recognized as truth except the science which described reality. Complete theories of the universe no longer appeared as fixed stars; they were regarded as resting on hypothesis, and ranked no higher than comets.

Counterterrorism and Cybersecurity: Total Information Awareness (2nd Edition), 2015

Interview with Media For Us, 2019

2015, Eulogy for the Honorable Reverend Clementa Pinckney (June 2015)
Context: But I don't think God wants us to stop there. For too long, we’ve been blind to the way past injustices continue to shape the present. Perhaps we see that now. Perhaps this tragedy causes us to ask some tough questions about how we can permit so many of our children to languish in poverty, or attend dilapidated schools, or grow up without prospects for a job or for a career. Perhaps it causes us to examine what we’re doing to cause some of our children to hate. Perhaps it softens hearts towards those lost young men, tens and tens of thousands caught up in the criminal justice system and leads us to make sure that that system is not infected with bias; that we embrace changes in how we train and equip our police so that the bonds of trust between law enforcement and the communities they serve make us all safer and more secure. Maybe we now realize the way racial bias can infect us even when we don't realize it, so that we're guarding against not just racial slurs, but we're also guarding against the subtle impulse to call Johnny back for a job interview but not Jamal. So that we search our hearts when we consider laws to make it harder for some of our fellow citizens to vote. By recognizing our common humanity by treating every child as important, regardless of the color of their skin or the station into which they were born, and to do what’s necessary to make opportunity real for every American -- by doing that, we express God’s grace.