'a quote' or, as it were, 'a quotation'

A friend sent me this. She said it reminded her of my style. I think she's right.

It appears to me impossible that I should cease to exist, or that this active, restless spirit, equally alive to joy and sorrow, should be only organized dust--ready to fly abroad the moment the spring snaps, or the spark goes out, which kept it together. Surely something resides in this heart that is not perishable--and life is more than a dream.
-Mary Wollstonecraft