Et sane arduum debet esse, quod adeo raro reperitur. Qui enim posset fieri, si salus in promptu esset et sine magno labore reperiri posset, ut ab omn… - Benedictus de Spinoza

That thing is called free, which exists solely by the necessity of its own nature, and of which the action is determined by itself alone. On the other hand, that thing is necessary, or rather constrained, which is determined by something external to itself to a fixed and definite method of existence or action.

...[I]t was the Goethe problem. He [Alfred Rosenberg] worshipped Goethe. And Goethe worshipped Spinoza. Alfred could not rid himself of this cursed book because Goethe loved it enough to carry it in his pocket for an entire year. This obscure Jewish nonsense had calmed Goethe's unruly passions and made him see the world more clearly than ever before. How could that be? Goethe saw something in it that he could not discern.

The piety of philosophers is theory, pure intuition of the divinity, calm and gay in silent solitude. Spinoza is the ideal of the species. The religious state of the poet is more passionate and more communicative.