Free-thinkers

Freethought (or "free thought") is a philosophical viewpoint which holds that positions regarding truth should be formed on the basis of logic, reason, and empiricism, rather than authority, tradition, revelation, or other dogma. In particular, freethought is strongly tied with rejection of traditional religious belief. The cognitive application of freethought is known as "freethinking", and practitioners of freethought are known as "freethinkers". The term first came into use in the 17th century in order to indicate people who inquired into the basis of traditional religious beliefs.

Freethinkers hold that knowledge should be grounded in facts, scientific inquiry, and logic. The skeptical application of science implies freedom from the intellectually limiting effects of confirmation bias, cognitive bias, conventional wisdom, popular culture, prejudice, or sectarianism.

Atheist author Adam Lee defines freethought as thinking which is independent of revelation, tradition, established belief, and authority, and considers it as a "broader umbrella" than atheism "that embraces a rainbow of unorthodoxy, religious dissent, skepticism, and unconventional thinking."

The basic summarizing statement of the essay The Ethics of Belief by the 19th-century British mathematician and philosopher William Kingdon Clifford is: "It is wrong always, everywhere, and for anyone, to believe anything upon insufficient evidence." The essay became a rallying cry for freethinkers when published in the 1870s, and has been described as a point when freethinkers grabbed the moral high ground. Clifford was himself an organizer of freethought gatherings, the driving force behind the Congress of Liberal Thinkers held in 1878.

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