Water, taken in moderation, cannot hurt anybody." Yes, Mark Twain wrote it. Visit the pristine and spectacular waterways of the world. Mark Twain traveled the globe between 1835 and 1910, writing and speaking of our most precious resource and its affect on mankind. Scholar Warren Brown gives a particular twist to this first-person portrayal: from youthful water tales to worldly water sails, and a spectacular story of Twain's court evidence saving a national water resource in 1940.