What is the character of Isaac, Abraham's son, as it is portrayed in Genesis, Chapter 26?

In Chapter 26 of Genesis, the character of Isaac is
presented primarily as a son who is dedicated to the ideals and projects of his father
Abraham.

The chapter begans with Isaac going to the land of
the Philistines to escape the famine that was affected the land of Canaan; we can deduce
from verse 2 that his real intent was to continue his travels all the way to Egypt. 
This is similar to what Abraham had done on a previous occassion of famine (see Genesis
12).

God, however, does not permit Isaac to leave the land
of Canaan, because He has promised it to Abraham as an
inheritance:

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Sojourn in this land, and I will be with you, and
will bless you; for to you and to your descendants I will give all these lands, and I
will fulfil the oath which I swore to Abraham your
father.

In other
words, Isaac must stay in Canaan in order to carry out the mission that was assigned to
his father, Abraham.

While living in Gerar, in
the land of the Philistines, "the men of the place" ask Isaac about the availability of
his wife, Rebecca.  Afraid that these men may kill him "for the sake of Rebecca," Isaac
answers that she is not his wife, but his sister.  It is obvious that he
borrowed this strategy from his father, Abraham, who used it twice (see Genesis 12 and
20).

Although we might question the fairness of
this strategy, God seems to approve, for soon after Isaac is blessed with great wealth,
so much so that the Philistines envy him.  Due to their envy, the Philistines begin
plugging up the wells that had been dug previously under Abraham's direction. 
Isaac, as usual, is dedicated to his father's
projects:

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And Isaac dug again the wells of water which had
been dug in the days of Abraham his father; for the Philistines had stopped them after
the death of Abraham; and he gave them the names which his father had given
them.