To read well, that is, to read true books in a true spirit, is a noble exercise, and one that will task the reader more than any other exercise which the customs of the day esteem. It requires a training such as the athletes underwent. . .
Source: Walden, Reading, 1854.
-- Henry David Thoreau, (Jul 12 1817-1862), US essayist, poet, naturalist; He is best known for his description of life at Walden Pond, Walden, 1854 and his essay Civil Disobedience, 1849.