The brain may be regarded as a kind of parasite of the organism, a pensioner, as it were, who dwells with the body.

The brain may be regarded as a kind of parasite of the organism, a pensioner, as it were, who dwells with the body.

大脑可以被看作是有机体的一种寄生虫，可以说是与身体同住的养老金领取者。

-- Arthur Schopenhauer 亚瑟·叔本华