They perfect nature, and are perfected by experience: for natural abilities are like natural plants, that need proyning, by study; and studies themselves, do give forth directions too much at large, except they be bounded in by experience.

读书完善天资，经验又完善学问；天赋如同自然生长的植物，需要学习来修剪，而书中的指引若不受经验约束，也往往过于宽泛。