ra·tio·nal·ism /ˈræʃnəˌlɪzəm, ˈræʃənḷˌɪ-/
 合理主義,理性論,純理論


 Ra·tion·al·ism n.
 1. Theol. The doctrine or system of those who deduce their religious opinions from reason or the understanding, as distinct from, or opposed to, revelation.
 2. Philos. The system that makes rational power the ultimate test of truth; -- opposed to sensualism, or sensationalism, and empiricism.

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 rationalism
      n 1: (philosophy) the doctrine that knowledge is acquired by
           reason without resort to experience
      2: the theological doctrine that human reason rather than
         divine revelation establishes religious truth
      3: the doctrine that reason is the right basis for regulating
         conduct [syn: freethinking]