Mark Twain said this quote

“ He done his level best.Was he a mining on the flat..He done it with a zest..Was he a leading of the choir..He done his level best.If he'd a reg'lar task to do,He never took no rest..Or if 'twas off and on the same..He done his level best.If he was preachin' on his beat,He'd tramp from east to west,And north to south ..in cold and heat..He done his level best.He'd Yank a sinner outen (Hades),And land him with the blest;Then snatch a prayer'n waltz in again,And do his level best.He'd cuss and sing and howl and pray,And dance and drink and jest,He done his level best.Whate'er this man was sot to doHe done it with a zest;No matter what his contract was,He'd do his level best... ”