Variant: But I have a new love for that glittering instrument, the human soul. It is a lovely and unique thing in the universe. It is always attacked and never destroyed - because 'Thou mayest.
Source: East of Eden

“I know three things will never be believed - the true, the probable, and the logical”

John Steinbeck book The Winter of Our Discontent

Source: The Winter of Our Discontent

“This I believe: That the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected.”

John Steinbeck book East of Eden

Variant: And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected.
Source: East of Eden (1952)
Context: And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected. And this I must fight against: any religion, or government which limits or destroys the individual. This is what I am and what I am about.
Context: Our species is the only creative species, and it has only one creative instrument, the individual mind and spirit of a man. Nothing was ever created by two men. There are no good collaborations, whether in art, in music, in poetry, in mathematics, in philosophy. Once the miracle of creation has taken place, the group can build and extend it, but the group never invents anything. The preciousness lies in the lonely mind of a man.
And now the forces marshaled around the concept of the group have declared a war of extermination on that preciousness, the mind of man. By disparagement, by starvation, by repressions, forced direction, and the stunning blows of conditioning, the free, roving mind is being pursued, roped, blunted, drugged. It is a sad suicidal course our species seems to have taken.
And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected. And this I must fight against: any religion, or government which limits or destroys the individual. This is what I am and what I am about. I can understand why a system built on a pattern must try to destroy the free mind, for it is the one thing which can by inspection destroy such a system. Surely I can understand this, and I hate it and I will fight against it to preserve the one thing that separates us from the uncreative beasts. If the glory can be killed, we are lost.

“It is so easy a thing to give—only great men have the courage and courtesy and, yes, the generosity to receive.”

John Steinbeck book Burning Bright

Friend Ed to Joe Saul in Act Three, Scene I: The Sea
Burning Bright (1950)

“There used to be a thing or a commodity we put great store by. It was called the People. Find out where the People have gone. I don’t mean the square-eyed toothpaste-and-hair-dye people or the new-car-or-bust people, or the success-and-coronary people. Maybe they never existed, but if there ever were the People, that’s the commodity the Declaration was talking about, and Mr. Lincoln.”

John Steinbeck

Pt. 3
Travels With Charley: In Search of America (1962)

“She envied Camille. Camille was a tramp, Mildred thought. And things were so much easier for a tramp. There was no conscience, no sense of loss, nothing but a wonderful, relaxed, stretching-cat selfishness. She could go to bed with anyone she wanted to and never see him again and have no feeling of loss or insecurity about it. That was the way Mildred thought it was with Camille. She wished she could be that way, and she knew she couldn't. Couldn't because of her mother. And the unbidden thought entered her mind—if her mother were only dead Mildred's life would be so much simpler. She could have a secret little place to live somewhere. Almost fiercely, she brushed the thought away. "What a foul thing to think," she said to herself ceremoniously. But it was a dream she often had.”

John Steinbeck book The Wayward Bus

Source: The Wayward Bus (1947), Ch. 13. Mildred is the daughter of Elliot and Bernice Pritchard.

“The President must be greater than anyone else, but not better than anyone else. We subject him and his family to close and constant scrutiny and denounce them for things that we ourselves do every day. A Presidential slip of the tongue, a slight error in judgment — social, political, or ethical — can raise a storm of protest. We give the President more work than a man can do, more responsibility than a man should take, more pressure than a man can bear. We abuse him often and rarely praise him. We wear him out, use him up, eat him up. And with all this, Americans have a love for the President that goes beyond loyalty or party nationality; he is ours, and we exercise the right to destroy him.”

John Steinbeck book America and Americans

America and Americans (1966)