To be certain is to have a belief that
A) one feels extremely confident about.
B) everybody agrees about.
C) cannot be false and cannot rationally be doubted.
D) is well-supported.

Question

Quizplus · Accepted Answer

To be certain means to have a belief that cannot be false and cannot be rationally doubted. This suggests a very high level of confidence, much higher than simply having a well-supported belief (option D) or a belief that one feels confident about (option A). Option B (everybody agrees about) is not a defining characteristic of certainty.

To Be Certain Is to Have a Belief That