Letter 95 — On the Usefulness of Basic Principles (§37)

“Now, as the former sort, who are inclined towards the good, can be raised to the heights more quickly: so the weaker spirits will be assisted and freed from their evil opinions if we entrust to them the accepted principles of philosophy; and you may understand how essential these principles are in the following way. Certain things sink into us, rendering us sluggish in some ways, and hasty in others.”