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.
rationalism (philosophy)
rationality
The epistemological view that reason is the chief source of knowledge, as opposed to empiricism.
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.
He is a rationalist and doesn't get carried away by emotions.
Literally 'emphasis on reason'. Describes an approach that prioritizes rationality.
To think logically, to reason things out. Describes the act of rational thinking.
The quality of being based on or in accordance with reason or logic.
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.
His thought is based on rationalism.
A rationalistic approach is needed for this problem.
He always thinks rationally.
人間は理性を持つ動物だ。
Humans are animals with reason.