All our attributes are modified or changed; and it will be a poor account of us if our views do not modify and change in a proportion.
我们的各种特质都在调整或改变;倘若我们的见解不能相应地改变,那就很难说我们有所长进。
— Robert Louis Stevenson · Virginibus Puerisque, and Other Papers · Crabbed Age and Youth —