[57] and this day is interminable eternity, from which there is no departure; for the periods of months, and years, and, in short, all the divisions of time, are only the inventions of men doing honour to number. But the unerring proper name of eternity is "today;" for the sun is always the same, without ever changing, going at one time beneath the earth, and at another time above the earth, and by him it is that day and night, the measures of time, are distinguished.