About this quote

Natural science assumes that reality is not created solely by the observer's act of perception. That working commitment makes shared measurement, repeatable experiments, and public disagreement about evidence possible.

When to use it

• Two laboratories compare instruments against the same physical event to test whether results agree.
• An astronomer predicts an eclipse that observers in different countries can independently record.
• A student repeats a chemistry procedure and distinguishes measurement error from the reaction itself.