--My friend who calls himself The Autocrat has given me a caution which I am going to repeat, with my comment upon it, for the benefit of all concerned. Professor,--said he, one day,--don't you think your brain will run dry before a year's out, if you don't get the pump to help the cow? Let me tell you what happened to me once. I put a little money into a bank, and bought a check-book, so that I might draw it as I wanted, in sums to suit. Things went on nicely for a time; scratching with a pen was as easy as rubbing Aladdin's Lamp; and my blank check-book seemed to be a dictionary of possibilities, in which I could find all the synonymes of happiness, and realize any one of them on the spot. A check came back to me at last with these two words on it,--NO FUNDS. My check-book was a volume of waste-paper. Now, Professor,--said he,--I have drawn something out of your bank, you know; and just so sure as you keep drawing out your soul's currency without making new deposits, the next thing will be, NO FUNDS,--and then where will you be, my boy? These little bits of paper mean your gold and your silver and your copper, Professor; and you will certainly break up and go to pieces, if you don't hold on to your metallic basis. There is something in that,--said I.--Only I rather think life can coin thought somewhat faster than I can count it off in words. What if one shall go round and dry up with soft napkins all the dew that falls of a June evening on the leaves of his garden? Shall there be no more dew on those leaves thereafter? Marry, yea,--many drops, large and round and full of moonlight as those thou shalt have absterged!