Stone does not decay,

石头是不会腐烂的。

and it spread to Britain where wild rabbits are regarded as a pest but where domesticated rabbits,equally susceptible to the disease, are the basis of a profitable fur industry.

这种疾病又蔓延到了英国。在英国，野兔被当作有害的动物，可是家兔是赚钱的毛皮工业的基础，然而家兔同样易感染这种疾病。

Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.

藏书使教育成为可能，而教育反过来又丰富了藏书，因为知识的增长遵循着一种“滚雪球”的规律。印刷术的发明又大大提高了知识增长的速度。

carrying with him in his pocket what remained of a bottle of medicine formerly prescribed for an indisposition of Mrs.Carlyle's.

衣袋里装上了一瓶他妻子不舒服时吃剩下的药。

often hampers the full development of a growing personality.

而匆忙的生活常常妨碍个性的全面发展。

the writer comes to discern things in his material which were not consciously in his mind when he began.

会领悟到素材中很多东西是他刚动笔时所未意识到的。