“Chance is as relentless as necessity.”

“Revolutions are not born of chance but of necessity.”

“Chance is necessity hidden behind a veil.”

“Ecumenopolis is under way, but we lack the overall concept and the courage to guide Ecumenopolis rather than just letting it happen by chance and necessity.”

“I wish to establish the true history of Cubism whose beginning was not a matter of mere chance, something dependent on a throw of the dice, but clearly linked to that revaluation of all the values of whose absolute necessity no-one in these days can be in any doubt.”

“Everything that occurs out of necessity, everything expected, repeated day in and day out is mute. Only chance can speak to us. We read its message much as gypsies read the images made by coffee grounds at the bottom of the cup.”

“How dismal the necessity of birth! how miserable the necessity of living! how hard the necessity of death!”
O neccessitas abiecta nascendi, vivendi misera dura moriendi.

“Money is the necessity that frees us from necessity.”

“[P]robability as a measurable degree of certainty; necessity and chance; moral versus mathematical expectation; a priori an a posteriori probability; expectation of winning when players are divided according to dexterity; regard of all available arguments, their valuation, and their calculable evaluation; law of large numbers…”

“Even if work were not an economic necessity, it is a spiritual necessity.”