I only know that I found myself, with a perseverance worthy of a much better cause, making the most strenuous exertions to compress it within those limits.

我只知道，我发现自己，以一个值得更好的事业的毅力，作出最艰苦的努力，压缩在这些限制内。

In every profession, the exertion of the greater part of those who exercise it, is always in proportion to the necessity they are under of making that exertion.

在每一种职业中，大部分从事该职业的人所付出的努力，总是与他们付出努力的必要性成正比。

Each teacher, would, no doubt, have felt himself under the necessity of making the utmost exertion, and of using every art, both to preserve and to increase the number of his disciples.

毫无疑问，每一位老师都会觉得自己有必要尽最大努力，使用每一种技巧，以维持和增加他的门徒人数。