Quotations by Jacob Bernoulli

We define the art of conjecture, or stochastic art, as the art of evaluating as exactly as possible the probabilities of things, so that in our judgments and actions we can always base ourselves on what has been found to be the best, the most appropriate, the most certain, the best advised; this is the only object of the wisdom of the philosopher and the prudence of the statesman.
Ars Conjectandi

It seems that to make a correct conjecture about any event whatever, it is necessary to calculate exactly the number of possible cases and then to determine how much more likely it is that one case will occur than another.
Ars Conjectandi

The sum of an infinite series whose final term vanishes perhaps is infinite, perhaps finite.
Ars conjectandi

Even as the finite encloses an infinite series
And in the unlimited limits appear,
So the soul of immensity dwells in minutia
And in the narrowest limits no limit in here.
What joy to discern the minute in infinity!
The vast to perceive in the small, what divinity!
Ars Conjectandi

Eadem mutata resurgo
Though changed I shall rise the same
Inscribed on his tomb in the Münster, Basel, with a equiangular spiral, in imitation of Archimedes.