What changes have taken place in Silas Marner throughout the book, and what were their causes?

Silas Marner learns to love.  At the beginning of the book, he is betrayed and hurt by his best friend, so he shuts out all humanity.  All he cares about is the gold that he accumulates.  Once the gold is stolen and he finds Eppie, he begins to love again.  His natural goodness comes out and he realizes that people are more important than money.