Quotes about suspect
A collection of quotes on the topic of suspect, doing, use, likeness.
Quotes about suspect

Canto V, lines 127–138 (tr. Mandelbaum).
The Divine Comedy (c. 1308–1321), Inferno

Letter to the Secretariat of the Soviet Writers’ Union (12 November 1969) as translated in Solzhenitsyn: A Documentary Record (1970) edited by Leopold Labedz (1970) “Expulsion".

Socrates, p. 145
Eupalinos ou l'architecte (1921)

Alhazen, quoted in “Muslim Journeys.” Bridging Cultures Bookshelf: Muslim Journeys. N.p., n.d. Web. 01 Nov. 2013. Also in Ibn al-Haytham Brief life of an Arab mathematician: died circa 1040 (September-October 2003) http://harvardmagazine.com/2003/09/ibn-al-haytham-html
Revolution by Number

“The old believe everything; the middle-aged suspect everything; the young know everything.”
Phrases and Philosophies for the Use of the Young (1894)

marginal note in Moncure D. Conway's Sacred Anthology
quoted by Albert Bigelow Paine in Mark Twain: A Biography (1912)

“Part of me suspects that I'm a loser and the other part of me thinks I'm God Almighty.”
About the song "I'm a Loser"; sometimes misquoted as "Half of me thinks I am a loser, the other half thinks I am God Almighty."
Playboy interview (1980)
March 27, 1968, page 215.
Official Report of Proceedings of the Hong Kong Legislative Council

Speech to a joint delegation of the House of Lords and the House of Commons (5 November 1566), quoted in Leah Marcus, Janel Mueller and Mary Rose (eds.), Elizabeth I: Collected Works (The University of Chicago Press, 2002), p. 95.

Oui interview (1979)

Source: Lectures on Negative Dialectics (1965-66), p. 23

Source: 1930s, Power: A New Social Analysis (1938), Ch. 2: Leaders and Followers

Blurb on The Complete Strangers In Paradise (2004), Vol. 1

"Price Flexibility and Output Stability: An Old Keynesian View" (1993)

In response to a question "In what circumstances would the president have constitutional authority to bomb Iran without seeking a use-of-force authorization from Congress?"
Boston Globe questionnaire on Executive Power, December 20, 2007. http://www.ontheissues.org/Archive/2007_Exec_Power_Barack_Obama.htm
2007

On the subject of torture, in a letter to Louis Alexandre Berthier (11 November 1798), published in Correspendance Napoleon edited by Henri Plon (1861), Vol. V, No. 3605, p. 128

“A prince should suspect everything.”
Napoleon : In His Own Words (1916)

Source: Reflections and Maxims (1746), p. 172.

After some fifty or sixty repetitions, this remark ceased to amuse me.
Source: 1950s, Portraits from Memory and Other Essays (1956), p. 9

2013, Commencement Address at Ohio State University (May 2013)

Letter to August Derleth (16 May 1931), responding to Derleth's suggestion that he call the interconnected mythology of his stories (what would later be known as the Cthulhu Mythos) "The Mythology of Hastur", quoted in "H.P. Lovecraft, a Life" by S.T. Joshi, p. 505
Non-Fiction, Letters, to August Derleth

gq-magazine.co.uk http://www.gq-magazine.co.uk/entertainment/articles/2011-02/01/gq-film-norman-foster-how-much-does-your-building-weigh-interview.

Letter to William H Herndon (10 July 1848)
1840s

http://www.bartleby.com/43/24.html
1790s, Farewell Address (1796)

"Is There a God?" (1952)
1950s

News Conference By President Obama at Palaiz de la Musique et Des Congres in Strasbourg, France https://www.whitehouse.gov/the-press-office/news-conference-president-obama-4042009 (4 April 2009)
2009

Napoleon : In His Own Words (1916)

2015, Address to the Nation by the President on San Bernardino (December 2015)

Recantation (22 June 1633) as quoted in The Crime of Galileo (1955) by Giorgio de Santillana, p. 312 http://law2.umkc.edu/faculty/projects/ftrials/galileo/recantation.html. <!-- also in Galileo's Mistake (2012) by Wade Rowland -->
Other quotes
Context: After an injunction had been judicially intimated to me by this Holy Office, to the effect that I must altogether abandon the false opinion that the sun is the center of the world and immovable, and that the earth is not the center of the world, and moves, and that I must not hold, defend, or teach in any way whatsoever, verbally or in writing, the said false doctrine, and after it had been notified to me that the said doctrine was contrary to Holy Scripture — I wrote and printed a book in which I discuss this new doctrine already condemned, and adduce arguments of great cogency in its favor, without presenting any solution of these, and for this reason I have been pronounced by the Holy Office to be vehemently suspected of heresy, that is to say, of having held and believed that the Sun is the center of the world and immovable, and that the earth is not the center and moves:
Therefore, desiring to remove from the minds of your Eminences, and of all faithful Christians, this vehement suspicion, justly conceived against me, with sincere heart and unfeigned faith I abjure, curse, and detest the aforesaid errors and heresies, and generally every other error, heresy, and sect whatsoever contrary to the said Holy Church, and I swear that in the future I will never again say or assert, verbally or in writing, anything that might furnish occasion for a similar suspicion regarding me; but that should I know any heretic, or person suspected of heresy, I will denounce him to this Holy Office, or to the Inquisitor or Ordinary of the place where I may be. Further, I swear and promise to fulfill and observe in their integrity all penances that have been, or that shall be, imposed upon me by this Holy Office. And, in the event of my contravening, (which God forbid) any of these my promises and oaths, I submit myself to all the pains and penalties imposed and promulgated in the sacred canons and other constitutions, general and particular, against such delinquents. So help me God, and these His Holy Gospels, which I touch with my hands.
I, the said Galileo Galilei, have abjured, sworn, promised, and bound myself as above; and in witness of the truth thereof I have with my own hand subscribed the present document of my abjuration, and recited it word for word at Rome, in the Convent of Minerva, this twenty-second day of June, 1633.

Lines (1795)
Context: If Thou be one whose heart the holy forms
Of young imagination have kept pure
Stranger! henceforth be warned; and know that pride,
Howe'er disguised in its own majesty,
Is littleness; that he who feels contempt
For any living thing, hath faculties
Which he has never used; that thought with him
Is in its infancy. The man whose eye
Is ever on himself doth look on one,
The least of Nature's works, one who might move
The wise man to that scorn which wisdom holds
Unlawful, ever. O be wiser, thou!
Instructed that true knowledge leads to love;
True dignity abides with him alone
Who, in the silent hour of inward thought,
Can still suspect, and still revere himself,
In lowliness of heart.

“I'm a kind of a paranoiac in reverse. I suspect people of plotting to make me happy.”
Raise High the Roof Beam, Carpenters and Seymour: An Introduction (1963), Raise High the Roof Beam, Carpenters (1955), p. 76

“I will not … that my wife be so much as suspected.”
His declaration as to why he had divorced his wife Pompeia, when questioned in the trial against Publius Clodius Pulcher for sacrilege against Bona Dea festivities (from which men were excluded), in entering Caesar's home disguised as a lute-girl apparently with intentions of a seducing Caesar's wife; as reported in Plutarch's Lives of Coriolanus, Caesar, Brutus, and Antonius by Plutarch, as translated by Thomas North, p. 53
Variant translations:
Caesar's wife must be above suspicion.
The Aryan Invasion Theory and Indian Nationalism (1993)

Oriana Fallaci. Interview with Indira Gandhi in New Delhi, February 1972

2. "Writing of One's Own" (pp. 17–18)
Liuyan [《流言》] (1968)
“Townsend shrugged. 'With all due respect to the good doctor, I highly suspect he's a moron.”
Source: Out of Sight, Out of Time

“There's a small possibility that I might be a murder suspect"
Stephanie”
Source: Three to Get Deadly
“I’m not a gentleman, I’m a nobleman, a distinction I suspect you understand very well.”
Source: Devil's Bride
Source: Wicked Deeds on a Winter's Night

Autobiographical Notes (1952)
Context: I don't like people who like me because I'm a Negro; neither do I like people who find in the same accident grounds for contempt. I love America more than any other country in the world, and, exactly for this reason, I insist on the right to criticize her perpetually. I think all theories are suspect, that the finest principles may have to be modified, or may even be pulverized by the demands of life, and that one must find, therefore, one's own moral center and move through the world hoping that this center will guide one aright. I consider that I have many responsibilities, but none greater than this: to last, as Hemingway says, and get my work done.
I want to be an honest man and a good writer.

“I still found literary criticism to be a suspect activity”
Source: Fun Home: A Family Tragicomic

“We must look for consistency. Where there is a want of it we must suspect deception.”
Source: The Casebook of Sherlock Holmes: Volume 1
Source: The Ghost of Crutchfield Hall