To laugh often and much ... this is to have succeeded. Probably not from Emerson: here's the full quotation and the story.
Ralph Waldo EmersonThe hard soil and four months of snow make the inhabitants of the northern temperate zone wiser and abler than his fellow who enjoys the fixed smile of the tropics.
Ralph Waldo EmersonIn daily life what distinguishes the master is the using those materials he has, instead of looking about for what are more renowned, or what others have used well.
Ralph Waldo Emerson