Henri Poincaré Quote

The very name calculus of probabilities is a paradox. Probability opposed to certainty is what we do not know, and how can we calculate what we do not know?


The Foundations of Science, Science and Hypothesis, Part IV, Chapter XI (p. 155), The Science Press. 1913


The very name calculus of probabilities is a paradox. Probability opposed to certainty is what we do not know, and how can we calculate what we do...

The very name calculus of probabilities is a paradox. Probability opposed to certainty is what we do not know, and how can we calculate what we do...

The very name calculus of probabilities is a paradox. Probability opposed to certainty is what we do not know, and how can we calculate what we do...

The very name calculus of probabilities is a paradox. Probability opposed to certainty is what we do not know, and how can we calculate what we do...