Schopenhauer vs. Spinoza

If I remember correctly, Schopenhauer was fond of and influenced by Spinoza's work. Certainly Schopenhauer's positing of an essentially unified world bears a striking resemblance to Spinoza's pantheism, yet that never got in the way of a classic Schopenhauerian quip, as the following attests:

To call the world God is not to explain it; it is only to enrich our language with a superfluous synonym for the word world.