In Hemingway’s “The Sun Also Rises,” when one character calls for a toast, another objects: “This wine is too good for toast-drinking, my dear. You don’t want to mix emotions up with a wine like that.” I feel the same about the Kimbell Art Museum in Fort Worth. Its main building, designed by Louis Kahn, is the most beautiful museum building in America. The light, the proportions, the sense of space — there’s nothing quite like it. The collection is exquisite. Every work rewards close attention. The experience of spending a couple of hours there is very, very intense. Emotions inevitably arise — good luck keeping them at bay! — Sebastian Smee