Fuit in Cartesio major librorum usus quam ipse videri volebat: hoc stylus et res ipsae docent. - Gottfried Wilhelm Leibniz

If you could blow the brain up to the size of a mill and walk about inside, you would not find consciousness.

[The consequences of] beliefs that go against the providence of a perfectly good, wise, and just God, or against that immortality of souls which lays them open to the operations of justice.... I even find that somewhat similar opinions, by stealing gradually into the minds of men of high station who rule the rest and on whom affairs depend, and by slithering into fashionable books, are inclining everything toward the universal revolution with which Europe is threatened, and are completing the destruction of what still remains in the world of the generous Greeks and Romans who placed love of country and of the public good, and the welfare of before fortune and even before life.

Nature does not make leaps.