Research Papers / Responding to a quote for history research paper [4]

I have written a response/research paper based on this quote: "Do not allow yourself to be overawed by traditional beliefs and institutions. Slavish regard for the past prevents society from achieving a happier future." How would the following people react to this statement? (Immanuel Kant, Karl Marx, Herbert Spencer)

I just finished the first draft for the paper but I don't know how, or if I'm supposed to include the quote (word-for-word) in my paper.

Any advice is appreciate.