ABSTRACT
Man is also a being who knows or strives to know; and he thinks of the future as a domain inhabited by future realities, or futura, of which he tries to form adequate images. The subjective certainties are the features of the future that he treats as known and does not question, on which he bases his calculations, and in relation to which he regulates his course of action. In all ages and lands, a profound instinct has led men to set up a social order affording them analogous assurances. In all other cases, the new head of state was installed, or installed himself, by virtue of a new rule. And this is worth noting, for it suggests that structural certainty which collapses is not easily replaced by another. The great problem of our age is that people want things to change more rapidly, and at the same time we want to have a better knowledge of things to come.
