Willa Cather said this quote

If words had cost money, Tom couldn't have used them more sparingly. The adjectives were purely descriptive, relating to form and colour, and were used to present the objects under consideration, not the young explorer's emotions. Yet through this austerity one felt the kindling imagination, the ardour and excitement of the boy, like the vibration in a voice when the speaker strives to conceal his emotion by using only the conventional phrases.