Rationalists' Frequently Asked Questions - Critical Thinking

While in common usage skepticism usually denotes a questioning attitude toward some claim or generally accepted fact, in a philosophical sense, skepticism is a mind-set that questions all assumptions before accepting them or their implications. A skeptic takes nothing for granted, and requires all claims to be well supported by evidence.

Critical thinking is carefully considered and informed judgement about what to believe or what to do in response to observations, experience, or arguments. Critical thought must be honest about potential flaws in the assumptions and information upon which it is based, and recognize that if new data or better supported assumptions come to light, all positions taken must be reconsidered, taking the new information into account.