Alexander Pope’s famous quote, A little knowledge is a dangerous thing. appears in which one of the following works?

The correct option is Essay on Criticism.

Alexander Pope’s famous quote, "A little learning is a dangerous thing" (often quoted as "A little knowledge is a dangerous thing"), appears in his famous poem An Essay on Criticism, which was published in 1711.

In this work, Pope discusses the nature of literary criticism and the common pitfalls that critics and writers fall into. The quote is part of a larger stanza that emphasizes the importance of deep, thorough learning over superficial knowledge:
"A little learning is a dang'rous thing;
Drink deep, or taste not the Pierian spring:
There shallow draughts intoxicate the brain,
And drinking largely sobers us again."

Here, the "Pierian spring" refers to the metaphorical source of knowledge, art, and science in Greek mythology. Pope argues that having only a small amount of knowledge makes a person overconfident and prone to making poor judgments, whereas gaining deeper knowledge makes one humble and wise.