We may, indeed, say that the hour of death is uncertain, but...

We may, indeed, say that the hour of death is uncertain, but when we say this we think of that hour as situated in a vague and remote expanse of time; it does not occur to us that it can have any connexion with the day that has already dawned and can mean 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 whose time-table, hour by hour, has been settled in advance.