For it being no more a contradiction that thinking should exist separate and independent from solidity, than it is a contradiction that solidity should exist separate and independent from thinking, they being both but simple ideas, independent one from another and having as clear and distinct ideas in us of thinking as of solidity, I know not why we may not as well allow a thinking thing without solidity, ie immaterial, to exist, as a solid thing without thinking, ie matter, to exist; especially since it is not harder to concieve how thinking should exist without matter, than how matter should think.