The Question and Answer section for Call of the Wild is a great resource to ask questions, find answers, and discuss the novel.
They are slaves who fear to speak
For the fallen and the weak;
People who are complacent and do not speak up for slaves are chained themselves to the slave ideology. They live in fear of the truth.
Thornton's power over Buck is can only be summed up as the power of love. The relationship between Buck and Thornton is a relationship based upon love and trust. Thornton is the perfect master, and Buck is the adoring dog.
This man had saved his...
I'm sorry, created the impression of Buck's relationship whith which owner? What chapter or section of the text does your question pertain to?