"Though there are some disagreeable things in Venice there is nothing so disagreeable as the visitors"

Henry James' quote is a commentary on the results of tourism on Venice. He is recommending that the influx of visitors to the city has had an unfavorable effect on the city, which the visitors themselves are the most disagreeable aspect of Venice. He indicates that the visitors are not respectful of the city's culture and history, and that they are more focused on taking pictures and purchasing souvenirs than appreciating the city's appeal. He likewise recommends that the visitors are not aware of the effect they are having on the city, which they are not making the effort to understand the city's culture and history. By stating that there is absolutely nothing so disagreeable as the visitors, James is making a statement about the significance of appreciating the culture and history of a place when visiting. He is recommending that visitors should take the time to learn about the city they are going to, and to be respectful of its culture and history.