Like any other kind of writing, criticism is a genre that one has to have a knack for, and the people who have a knack for it are those whose knowledge intersects interestingly and persuasively with their taste. In the end, the critic is someone who, when his knowledge, operated on by his taste in the presence of some new example of the genre he’s interested in—a new TV series, a movie, an opera or ballet or book—hungers to make sense of that new thing, to analyze it, interpret it, make it mean something.

A Critic's Manifesto by Daniel Mendelsohn, writing for The New Yorker​.