He may be conceited, ill-mannered, presumptuous or fatuous,

这些年轻人也许狂妄自负，举止无理，傲慢放肆，愚昧无知，

While they enjoy the comfort and banal luxury of their dwelling,

在享受自己住宅的舒适和庸俗的豪华时，

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。

The Ordnance Officer ordered all the port cannon to be heaved to starboard to counteract the list,

炮长命令把左舷上所有大炮搬到右舷上来以抵消船的倾斜，

and who drew his conclusions fearlessly.

并大胆地得出自己的结论。

which we may call respectively the tough and the gentle.

我们分别称之为强硬法和温柔法。