思し弁べん

noun, noun or participle which takes 'suru', transitive verb

speculation; philosophical reasoning

Primarily a philosophical term for abstract reasoning or speculative thought, often contrasted with empirical knowledge. Can be used as a noun or with する to mean 'to speculate'.

• 彼かれの理り論ろんは純じゅん粋すいな思し弁べんに基もとづいている。

  His theory is based on pure speculation.

• 哲てつ学がく者しゃは存そん在ざいの本ほん質しつについて思し弁べんする。

  Philosophers speculate about the nature of existence.