They perfect nature, and are perfected by experience:
for natural abilities are like natural plants,
that need pruning by study;
and studies themselves do give forth directions too much
at large,
except they be bounded in by experience.
读书弥补天性的缺陷,经验又弥补读书的不足:
人的天性犹如自然的花木,
需要学习予以整枝培育;
读书自身无边无际,
需要经验予以制约。