By emotion I mean the modifications of the body, whereby the active power of the said body is increased or diminished, aided or constrained, and also… - Benedictus de Spinoza

But, after men began to form general ideas, to think out types of houses, buildings, towers, &c., and to prefer certain types to others, it came about, that each man called perfect that which he saw agree with the general idea he had formed of the thing in question, and called imperfect that which he saw agree less with his own preconceived type, even though it had evidently been completed in accordance with the idea of its artificer. This seems to be the only reason for calling natural phenomena, which, indeed, are not made with human hands, perfect or imperfect: for men are wont to form general ideas of things natural, no less than of things artificial, and such ideas they hold as types, believing that Nature (who they think does nothing without an object) has them in view, and has set them as types before herself. Therefore, when they behold something in Nature, which does not wholly conform to the preconceived type which they have formed of the thing in question, they say that Nature has fallen short or has blundered, and has left her work incomplete.

It is plain from what has been said, that in no case do we strive for, wish for, long for, or desire anything, because we deem it to be good, but on the other hand we deem a thing to be good, because we strive for it, wish for it, long for it, or desire it.

...Humiliated beyond sufferance, Uriel went home, wrote a fierce denunciation of his persecutors, and shot himself. This was 1640. At that time Baruch Spinoza, "the greatest Jew of modern times," and the greatest of modern philosophers, was a child of eight, the favorite student of the synagogue. It was this Odyssey of the Jews that filled the background of Spinoza's mind, and made him irrevocably, however excommunicate, a Jew. Though his father was a successful merchant, the youth had no leaning to such a career, and preferred to spend his time in and around the synagogue, absorbing the religion and the history of his people. He was a brilliant scholar, and the elders looked upon him as a future light of their community and their faith.