自由思想家(尤指在宗教思想方面)拒绝了权威和教条主义,赞同理性的探究和思索的人 One who has rejected authority and dogma, especially in religious thinking, in favor of rational inquiry and speculation.
人是有理性的动物。 Man is a rational being.
合理性合乎理性的性质或状态 The quality or condition of being rational.