Will Durant quote: “Those who have suffered much become very bitter or very gentle.”

“I have but one passion: to enlighten those who have been kept in the dark, in the name of humanity which has suffered so much and is entitled to happiness. My fiery protest is simply the cry of my very soul.”

Emile Zola J’accuse…!

Source: J'accuse! (1898)
Context: In making these accusations I am aware that I am making myself liable to articles 30 and 31 of the law of 29/7/1881 regarding the press, which make libel a punishable offence. I expose myself to that risk voluntarily.
As for the people I am accusing, I do not know them, I have never seen them, and I bear them neither ill will nor hatred. To me they are mere entities, agents of harm to society. The action I am taking is no more than a radical measure to hasten the explosion of truth and justice.
I have but one passion: to enlighten those who have been kept in the dark, in the name of humanity which has suffered so much and is entitled to happiness. My fiery protest is simply the cry of my very soul. Let them dare, then, to bring me before a court of law and let the enquiry take place in broad daylight! I am waiting.

“There is the danger that those of us who have been forced so long to stand amid the tragic midnight of oppression—those of us who have been trampled over, those of us who have been kicked about—there is the danger that we will become bitter. But if we will become bitter and indulge in hate campaigns, the new order which is emerging will be nothing but a duplication of the old order.”

Martin Luther King, Jr. (1929–1968) American clergyman, activist, and leader in the American Civil Rights Movement

1950s, Give Us the Ballot (1957)
Context: This is no day for the rabble-rouser, whether he be Negro or white. We must realize that we are grappling with the most weighty social problem of this nation, and in grappling with such a complex problem there is no place for misguided emotionalism. We must work passionately and unrelentingly for the goal of freedom, but we must be sure that our hands are clean in the struggle. We must never struggle with falsehood, hate, or malice. We must never become bitter. I know how we feel sometime. There is the danger that those of us who have been forced so long to stand amid the tragic midnight of oppression—those of us who have been trampled over, those of us who have been kicked about—there is the danger that we will become bitter. But if we will become bitter and indulge in hate campaigns, the new order which is emerging will be nothing but a duplication of the old order.

“I am, I must confess, suspicious of those who denounce others for having "too much" sex. At what point does a "healthy" amount become "too much"? There are, of course, those who suffer because their desire for sex has become compulsive; in their cases the drive (loneliness, guilt) is at fault, not the activity as such.”

Edmund White (1940) American novelist and LGBT essayist

San Francisco (p. 37).
States of Desire: Travels in Gay America (1980)

“Now what is it that moves our very hearts and sickens us so much at cruelty shown to poor brutes? … They have done us no harm and they have no power of resistance; it is the cowardice and tyranny of which they are the victims which make their sufferings so especially touching. Cruelty to animals is as if man did not love God. … There is something so very dreadful, so Satanic, in tormenting those who have never harmed us, who cannot defend themselves, who are utterly in our power.”

John Henry Newman (1801–1890) English cleric and cardinal

Parochial and Plain Sermons, London, 1868; quoted in Matthew Scully, [//books.google.it/books?id=SYY7AAAAQBAJ&pg=PT30 Dominion] (2002).

“Humanity must suffer very much before it comes to an understanding of the advantage of unity.”

Nicholas Roerich (1874–1947) Russian painter, writer, archaeologist, theosophist, enlightener, philosopher

§ 273
New Era Community (1926)
Context: Humanity must suffer very much before it comes to an understanding of the advantage of unity. Most destructive forces have been directed for the purpose of obscuring the embryos of unification. Each unifying agent is subject to personal danger. Each peace-maker is disparaged. Each worker is ridiculed. Each builder is called madman. Thus the servants of dissolution try to drive from the face of the Earth the Banner of Enlightenment. Work is impossible amid enmities. Construction is inconceivable amid explosions of hatred. Fellowship is battling with man-hatred.
Let us keep in memory these old Covenants.