Once a day, especially in the early years of life and study, call yourselves to an account what new ideas, what new proposition or truth you have gained, what further confirmation of known truths, and what advances you have made in any part of knowledge.
Though reading and conversation may furnish us with many ideas of men and things, yet it is our own meditation must form our judgment.
Acquire a government over your ideas, that they may come down when they are called, and depart when they are bidden.