事實上，自然科學長期以來只是大腦和想象力的產物：現在是時候回歸到對物質和顯而易見事物的樸素而健全的觀察上了。
The truth is, the science of Nature has been already too long made only a work of the brain and the fancy: It is now high time that it should return to the plainness and soundness of observations on material and obvious things.
