“The greater their ignorance, the stronger their opinions.”

1962, Rice University speech

Sixteenth Week.
My Summer in a Garden (1870)

Nahj al-Balagha

Source: Animals Matter: A Biologist Explains Why We Should Treat Animals with Compassion and Respect

Guardian Camwar, in Ch. 4 : the cooper<!-- p. 42 -->
Source: The Visitor (2002)
Context: You asked for wisdom? Hear these words. Nothing limits intelligence more than ignorance; nothing fosters ignorance more than one's own opinions; nothing strengthens opinions more than refusing to look at reality.

Source: Political Aphorisms, Moral and Philosophical Thoughts (1848), p. 146

The Critic as Artist (1891), Part I
Context: There is much to be said in favor of modern journalism. By giving us the opinions of the uneducated, it keeps us in touch with the ignorance of the community. By carefully chronicling the current events of contemporary life, it shows us of what very little importance such events really are. By invariably discussing the unnecessary, it makes us understand what things are requisite for culture, and what are not.
Context: Puritans cannot destroy a beautiful thing, yet, by means of their extraordinary prurience, they can almost taint beauty for a moment. It is chiefly, I regret to say, through journalism that such people find expression. I regret it because there is much to be said in favour of modern journalism. By giving us the opinions of the uneducated, it keeps us in touch with the ignorance of the community.
Context: It is chiefly, I regret to say, through journalism that such people find expression. I regret it because there is much to be said in favour of modern journalism. By giving us the opinions of the uneducated, it keeps us in touch with the ignorance of the community. By carefully chronicling the current events of contemporary life, it shows us of what very little importance such events really are. By invariably discussing the unnecessary, it makes us understand what things are requisite for culture, and what are not.