Who is described as the hardest worker in chapter 3?

In this chapter, which describes how the Animals take over
the farm and begin the process of doling out the work load, Boxer, the plough horse, is
described as the hardest working of them all even though all animals did their part to
the best of their abilities. Orwell describes Boxer as
follows:

Boxer
was the admiration of everybody. He had been a hard worker
even in Jones's
time, but now he seemed more like three horses than one;
there were days when
the entire work of the farm seemed to rest on his
mighty
shoulders.

Boxer often does
the work of several animals. He volunteers to do extra work, he makes arrangements to
get woken up earlier than anyone else so that he can work a longer day. In short, he is
the picture of dedication doing his part and then some so that those who are more
limited in their abilities might have their needs met as well. He is altruistic and in
it for the good of the group, not for personal glory. His motto was always

I will work
harder

and he lived this
motto
daily.