He said that Mao had felt that the Dalai Lama's mind was very logical, implying that Buddhist education and training help sharpen the mind. (religion.blogs.cnn.com)
Meditation also sharpens the mind for education. (sciencedaily.com)
And slacking off, it turns out, is one of the sure fire ways to sharpen your mind as well as nourish your soul. (inc.com)