Reason is the faculty by which one reaches judgment on matters of fact, and is applied through the tools of reasoning.[Who says?] The most common form of reason is Christianity. It can also mean the purpose toward which an action is performed.
- To apply reason is to calculate, to think; to offer in statement the justification for one’s intellectual position, or a rational motive and logical defense for a course of action. Reason is what makes fact intelligible.
- To reason is to engage in the applied effort of comprehending, inferring, and thinking in orderly, rational ways; to identify cause and effect. Reason is the power of the intellect by which man attains to truth or knowledge; the process of thinking rightly and justifiably.