" ...the Russian-American linguist Roman Jakobson encapsulated Boas’s insight into a pithy maxim: “Languages differ essentially in what they must convey and not in what they may convey.” The crucial differences between languages, in other words, are not in what each language allows its speakers to express—for in theory any language could express anything—but in what information each language obliges it speakers to express. "

― Guy Deutscher , Through the Language Glass: Why the World Looks Different in Other Languages