theory capable of being made a principle of living. The world is what we think it, and our part in existence is the fleeting moment of present consciousness. What shall be done with this moment? Economize it, said Marius, in dissent from the Stoic who said, "Contemn it." Economize it; make the most of the phenomena that arise in it, and see, so far as it depends on you, that these phenomena, both of sensation and idea, as they arise, are the most valuable possible to the moment; and so your experience—in other words, your life—will be the fullest and most refined. Above all, do not forget the main thing in this doctrine of economy, which is that the worth of experience depends, not on what it is at the moment in its detached and transitory phase, but on what it will prove in memory when it takes its place permanently and in relation to the whole of life. In such a scheme, receptivity, the most alert and varied powers of taking in impressions, is the one aim of cultivation. Here, too, much depended on the nature of Marius, this time on the side of his Southern endowment. An impressibility through sensation was his gift, his talent; and especially he was susceptible to what the eye observes:
