We may, indeed, say that the hour of death is uncertain, but when we say so we represent that hour to ourselves as situated in a vague and remote expanse of time, it never occurs to us that it can have any connexion with the day that has already dawned, or may signify that death — or its first assault and partial possession of us, after which it will never leave hold of us again — may occur this very afternoon, so far from uncertain, this afternoon every hour of which has already been allotted to some occupation.