我われは仮か説せつを作つくらず

expression

I feign no hypotheses; hypotheses non fingo

A famous quotation from Isaac Newton's essay, expressing his refusal to invent speculative hypotheses not derived from experiment. Used in Japanese as a set phrase when discussing scientific methodology or Newton's philosophy.

• ニュートンの「我われは仮か説せつを作つくらず」という言こと葉ばは、科か学がく的てき方ほう法ほうの基き本ほんを示しめしている。

  Newton's phrase 'I feign no hypotheses' illustrates a fundamental principle of the scientific method.