Translation guide
Rationalism is a philosophical stance emphasizing reason as the primary source of knowledge. In Japanese, it is expressed through specific philosophical terms, but also through related concepts like logic and rationality in everyday contexts.
The epistemological view that reason is the chief source of knowledge, as opposed to empiricism.
The standard translation for philosophical rationalism. Used in academic and intellectual contexts.
合理主義は、理性を知識の源泉と見なす。
Rationalism regards reason as the source of knowledge.
Less common synonym for rationalism, emphasizing 'reason' (理性). Sometimes used in philosophical texts.
彼の思想は理性主義に基づいている。
His thought is based on rationalism.
The attitude of relying on reason and logical thinking in everyday life, often contrasted with emotion or superstition.
Also used for the general disposition toward reason. Can describe a person's mindset.
彼は合理主義者で、感情に流されない。
He is a rationalist and doesn't get carried away by emotions.
Literally 'emphasis on reason'. Describes an approach that prioritizes rationality.
この問題には理性重視の姿勢が必要だ。
A rationalistic approach is needed for this problem.
To think logically, to reason things out. Describes the act of rational thinking.
彼はいつも理詰めで考える。
He always thinks rationally.
The quality of being based on or in accordance with reason or logic.
Rationality; the quality of being rational. Often used in discussions of efficiency or logical coherence.
彼の提案には合理性がない。
His proposal lacks rationality.
Reason as a faculty. Can be used to refer to the capacity for rational thought.
Both translate to 'rationalism', but 合理主義 is far more common and covers both philosophical and everyday meanings. 理性主義 is rare and mostly found in older or specialized philosophical texts.
When describing a person as a rationalist, use 合理主義者 (ごうりしゅぎしゃ). For a rational approach, 合理的な (ごうりてきな) is more natural than 合理主義の.
Humans are animals with reason.