Letter 108 — On the Approaches to Philosophy (§2)

“Things are not to be gathered at random; nor should they be greedily attacked in the mass; one will arrive at a knowledge of the whole by studying the parts. The burden should be suited to your strength, nor should you tackle more than you can adequately handle. Absorb not all that you wish, but all that you can hold. Only be of a sound mind, and then you will be able to hold all that you wish. For the more the mind receives, the more does it expand.”