Source: Non-fiction, Created equal: Why gay rights matter to America (1994), p.6
“There is, however, no prejudice so strong as that which arises from a fancied exemption from all prejudice. For this last implies not only the practical conviction that it is right, but the theoretical assumption that it cannot be wrong.”
"On the Tendency of Sects"
The Round Table (1815-1817)
Context: There is a natural tendency in sects to narrow the mind.
The extreme stress laid upon difierences of minor importance, to the neglect of more general truths and broader views of things, gives an inverted bias to the understanding; and this bias is continually increased by the eagerness of controversy, and captious hostility to the prevailing system. A party-feeling of this kind once formed will insensibly communicate itself to other topics; and will be too apt to lead its votaries to a contempt for the opinions of others, a jealousy of every difference of sentiment, and a disposition to arrogate all sound principle as well as understanding to themselves, and those who think with them. We can readily conceive how such persons, from fixing too high a value on the practical pledge which they have given of the independence and sincerity of their opinions, come at last to entertain a suspicion of every one else as acting under the shackles of prejudice or the mask of hypocrisy. All those who have not given in their unqualified protest against received doctrines and established authority, are supposed to labour under an acknowledged incapacity to form a rational determination on any subject whatever. Any argument, not having the presumption of singularity in its favour, is immediately set aside as nugatory. There is, however, no prejudice so strong as that which arises from a fancied exemption from all prejudice. For this last implies not only the practical conviction that it is right, but the theoretical assumption that it cannot be wrong. From considering all objections as in this manner "null and void,” the mind becomes so thoroughly satisfied with its own conclusions, as to render any farther examination of them superfluous, and confounds its exclusive pretensions to reason with the absolute possession of it.
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William Hazlitt 186
English writer 1778–1830Related quotes

"On the Harmony of Theory and Practice in Mechanics" (Jan. 3, 1856)
Context: Another evil, and one of the worst which arises from the separation of theoretical and practical knowledge, is the fact that a large number of persons, possessed of an inventive turn of mind and of considerable skill in the manual operations of practical mechanics, are destitute of that knowledge of scientific principles which is requisite to prevent their being misled by their own ingenuity. Such men too often spend their money, waste their lives, and it may be lose their reason in the vain pursuits of visionary inventions, of which a moderate amount of theoretical knowledge would be sufficient to demonstrate the fallacy; and for want of such knowledge, many a man who might have been a useful and happy member of society, becomes a being than whom it would be hard to find anything more miserable.
The number of those unhappy persons — to judge from the patent-lists, and from some of the mechanical journals — must be much greater than is generally believed.<!--p. 176

Quoted in: Joseph LoConte, "The Golden Rule of Toleration" http://www.christianitytoday.com/ch/thepastinthepresent/historymatters/goldenrule.html, Christianity Today, Accessed 6 March 2011

Zoya Akhtar & Reema Kagti - FC Post Mortem 15 Jun 2015, at 10 Min 25 Sec https://www.youtube.com/watch?v=V4DGmAXNPt4
From interview with Film Companion

The motive is not a desire to elevate the negro, but to humiliate and degrade those of mixed blood; not a desire to bring the negro up, but to cast the mulatto and the quadroon down by forcing him below an arbitrary and hated color line.
1880s, The Future of the Colored Race (1886)

1790s, Goya's announcement about 'Los Caprichos', 6 Febr. 1799

“Managers cannot learn from doing things right, only from doing them wrong”
Source: 2000s, A little book of f-laws: 13 common sins of management, 2006, p. 37 cited in: Andrew Carey (2008) Inside Project Red Stripe: Incubating Innovation and Teamwork at the Economist. p. 49.

“Prejudice is a disease. So is fashion. But I will not wear prejudice.”
Lady Gaga on her Twitter http://twitter.com/ladygaga/status/15736252756