God does not play dice with the universe

Etymology
From a quotation of, "I, at any rate, am convinced that [God] does not throw dice" [Jedenfalls bin ich überzeugt, daß der nicht würfelt.], by which he expressed his dissatisfaction with the preeminence of probability in the of quantum mechanics. Einstein himself used variants of the phrase at different times. (See ).

Phrase

 * 1) Probability (as applied in the Copenhagen interpretation) is an unsatisfactory basis for understanding quantum mechanics.