The Proem.Even as champions and wrestlers and such as practise the strength and agility of body are not only careful to retain a sound con- stitution of health, and to hold on their ordinary course of exercise, The mind requires some recreation as well as the body.but sometimes also to recreate themselves with seasonable intermission, and esteem it as a main point of their practice; so I think it necessary for scholars and such as addict themselves to the study of learning, after they have travelled long in the perusal of serious authors, to relax a little the intention of their thoughts, that they may be more apt and able to endure a continued course of study.