Power in defense of freedom is greater than power in behalf of tyranny and oppression.
A state too expensive in itself, or by virtue of its dependencies, ultimately falls into decay; its free government is transformed into a tyranny; it disregards the principles which it should preserve, and finally degenerates into despotism. The distinguishing characteristic of small republics is stability: the character of large republics is mutability.simón bolívar
Were a stranger to drop on a sudden into this world, I would show him, as a specimen of its ills, a hospital full of diseases, a prison crowded with malefactors and debtors, a field of battle strewed with carcasses, a fleet foundering in the ocean, a nation languishing under tyranny, famine, or pestilence. To turn the gay side of life to him, and give him a notion of its pleasures; whither should I conduct him? to a ball, to an opera, to court? He might justly think, that I was only showing him a diversity of distress and sorrow.David Hume
He used to say that personal beauty was a better introduction than any letter; 18 but others say that it was Diogenes who gave this description of it, while Aristotle called beauty "the gift of God"; that Socrates called it "a short-lived tyranny"; Theophrastus , "a silent deceit"; Theocritus , "an ivory mischief"; Carneades , "a sovereignty which stood in need of no guards".Aristotle, 9.
From behind the Iron Curtain, there are signs that tyranny is in trouble and reminders that its structure is as brittle as its surface is hard.State of the Union Address to Congress (7 January 1954)
He used to say that personal beauty was a better introduction than any letter; 18 but others say that it was Diogenes who gave this description of it, while Aristotle called beauty "the gift of God"; that Socrates called it "a short-lived tyranny"; Theophrastus, "a silent deceit"; Theocritus, "an ivory mischief"; Carneades, "a sovereignty which stood in need of no guards".diogenes laërtius
The majority falls prey to the delusion popular in some circles that ordinary people are too careless and stupid to own guns, and we would be far better off leaving all weapons in the hands of professionals on the government payroll. But the simple truth born of experience is that tyranny thrives best where government need not fear the wrath of an armed people.alex kozinski
From the vulgar bourgeois standpoint the terms dictatorship and democracy are mutually exclusive. Failing to understand the theory of class struggle, and accustomed to seeing in the political arena the petty squabbling of the various bourgeois circles and coteries, the bourgeois conceives dictatorship to mean the annulment of all the liberties and guarantees of democracy, tyranny of every kind, and every sort of abuse of power in the personal interests of a dictator.Collected Works, Vol. 31
Now the trumpet summons us again not as a call to bear arms, though arms we need not as a call to battle, though embattled we are but a call to bear the burden of a long twilight struggle, year in and year out, "rejoicing in hope, patient in tribulation" a struggle against the common enemies of man: tyranny, poverty, disease and war itself.John F. Kennedy, inaugural address, January 20, 1961. The Public Papers of the Presidents of the United States: John F. Kennedy, 1961, p. 2. The words in quotation marks are from the Bible, Romans 12:12. This is one of seven inscriptions carved on the walls at the gravesite of John F. Kennedy, Arlington National Cemetery.
Enlighten the people generally, and tyranny and oppressions of body and mind will vanish like evil spirits at the dawn of day.Thomas Jefferson, in The Best of the Kambulow (1 June 2003), p.642
Who doubting tyranny, and fainting under Fortune's false lottery, desperately run To death, for dread of death; that soul's most stout, That, bearing all mischance, dares last it out.John Fletcher, The Honest Man's Fortune (1613; published 1647), Act IV, scene 1.
Wherever a law is productive of tyranny, I shall ever give my consent to narrow the construction.Willes, J., Jones v. Smart (1785), 1 T. R. 49.
...the rule of Caesar, although during its establishment it gave no little trouble to its opponents, still, after they had been overpowered and had accepted it, they saw that it was a tyranny only in name and appearance, and no cruel or tyrannical act was authorized by it; nay, it was plain that the ills of the state required a monarchy, and that Caesar, like a most gentle physician, had been assigned to them by Heaven itself. Therefore the Roman people felt at once a yearning for Caesar, and in consequence became harsh and implacable towards his murders...Plutarch, Parallel Lives, Dion and Brutus 
I often wish … that I could rid the world of the tyranny of facts. What are facts but compromises? A fact merely marks the point where we have agreed to let investigation cease.Author unknown, "On Having Known a Poet", The Atlantic Monthly (May 1906), p. 712; attributed to frequent contributor Bliss Carman in Bruce Bohle, ed., The Home Book of American Quotations (1967), p. 90.
One profound lesson Plato teachers, albeit not by design, is that Plato himself, considered by many the greatest of all philosophers, could not construct the perfect society. He sought to avoid the disintegration of society and the onset of tyranny, but his solution was a totalitarian City destructive of human nature. Regrettably, Plato provided a philosophical and intellectual brew for a utopian society that would influence tyrannies for centuries to come.Mark R. Levin, (2012) Ameritopia: The Unmaking of America, NY: Threshold Editions, ISBN 97814391732544, p. 36
The one who commits aggression and tyranny, and the one who helps him upon it, and the one who is pleased over it - all are party and participants in it.al-Shahid al-Tustari, Ihqaqul-Haq, vol.12, p.432
Tacitus appears to have been as great an enthusiast as Petrarch for the revival of the republic and universal empire. He has exerted the vengeance of history upon the emperors, but has veiled the conspiracies against them, and the incorrigible corruption of the people which probably provoked their most atrocious cruelties. tyranny can scarcely be practised upon a virtuous and wise people.john adams