[W]hat postulate do we implicitly admit? It is that the duration of two identical phenomena is the same; or... that the same causes take the same time to produce the same effects. ...Is it impossible that experiment may some day contradict our postulate?

— Henri Poincaré, The Value of Science (1905)

From The Value of Science (1905), ch. 2: The Measure of Time.

Topics: scientific method