
“There are more fools than knaves in the world, else the knaves would not have enough to live upon.”
The Genuine Remains in Verse and Prose of Mr. Samuel Butler (1759), edited by Robert Thyer
"Letter to Mr. Clifford, on his Human Reason"; cited from The Works of His Grace, George Villiers, the Duke of Buckingham (London: T. Evans, 1770) vol. 2, p. 105.
Variant (modernized spelling): The world is made up, for the most part, of fools and knaves, both irreconcilable foes to truth.
“There are more fools than knaves in the world, else the knaves would not have enough to live upon.”
The Genuine Remains in Verse and Prose of Mr. Samuel Butler (1759), edited by Robert Thyer
“It's a strange world made up of disappointments for the most part.”
Letter to Robert McAlmon (8 August 1943), published in The Selected Letters of William Carlos Williams (1957) edited by John C. Thirlwall, p. 216
General sources
Context: It's a strange world made up of disappointments for the most part.
I keep writing largely because I get a satisfaction from it which can't be duplicated elsewhere. It fills the moments which otherwise are either terrifying or depressed. Not that I live that way, work too quiets me. My chief dissatisfaction with myself at the moment is that I don't seem to be able to lose myself in what I have to do as I should like to.
Source: Don Quixote de la Mancha (1605–1615), Part I, Book IV, Ch. 4.
Political, Moral, and Miscellaneous Reflections (1750), Moral Thoughts and Reflections
Memoirs of J. Casanova de Seingalt (1894)
Context: In spite of a good foundation of sound morals, the natural offspring of the Divine principles which had been early rooted in my heart, I have been throughout my life the victim of my senses; I have found delight in losing the right path, I have constantly lived in the midst of error, with no consolation but the consciousness of my being mistaken. Therefore, dear reader, I trust that, far from attaching to my history the character of impudent boasting, you will find in my Memoirs only the characteristic proper to a general confession, and that my narratory style will be the manner neither of a repenting sinner, nor of a man ashamed to acknowledge his frolics. They are the follies inherent to youth; I make sport of them, and, if you are kind, you will not yourself refuse them a good-natured smile. You will be amused when you see that I have more than once deceived without the slightest qualm of conscience, both knaves and fools. As to the deceit perpetrated upon women, let it pass, for, when love is in the way, men and women as a general rule dupe each other. But on the score of fools it is a very different matter. I always feel the greatest bliss when I recollect those I have caught in my snares, for they generally are insolent, and so self-conceited that they challenge wit. We avenge intellect when we dupe a fool, and it is a victory not to be despised for a fool is covered with steel and it is often very hard to find his vulnerable part. In fact, to gull a fool seems to me an exploit worthy of a witty man. I have felt in my very blood, ever since I was born, a most unconquerable hatred towards the whole tribe of fools, and it arises from the fact that I feel myself a blockhead whenever I am in their company. I am very far from placing them in the same class with those men whom we call stupid, for the latter are stupid only from deficient education, and I rather like them. I have met with some of them — very honest fellows, who, with all their stupidity, had a kind of intelligence and an upright good sense, which cannot be the characteristics of fools. They are like eyes veiled with the cataract, which, if the disease could be removed, would be very beautiful.
“He that cheats another is a knave; but he that cheats himself is a fool.”
Sentence-Sermons from Brigham Young University Quarterly quoted in The Latter-Day Saints' Millenial Star, Vol. 70 https://books.google.com/books?id=eItJAAAAYAAJ&pg=PA452&lpg=PA452&dq=He+that+cheats+another+is+a+knave;+but+he+that+cheats+himself+is+a+fool.&source=bl&ots=WBAQiPjQX6&sig=WLEdKN2_kXPXj8jZALKCp2dguaQ&hl=en&sa=X&ved=0ahUKEwjXmNeF_7HMAhUH42MKHdySDgsQ6AEILzAE#v=onepage&q=fool&f=false
“Titles are marks of honest men, and wise;
The fool or knave that wears a title lies.”
Satire I, l. 145.
Love of Fame (1725-1728)
“A knave, when tried on honesty's plain rule,
And, when by that of reason, a mere fool”
Hope
Interview in Criticism in Society (1987), edited by Imre Salusinski.