Yet Mr.Johnson was a working man, and his hands were hardened by honest toil.

Here, then, was something for observation and study.

Whence the difference?
The explanation was soon furnished, in the superiority of mind over simple brute force.

Many pages might be given to the contrast, and in explanation of its causes.

But an incident or two will suffice to show the reader as to how the mystery gradually vanished before me.
My first afternoon, on reaching New Bedford, was spent in visiting the wharves and viewing the shipping.