这句话其实挺简单:
X1 being P1, X2 being P2, it is past doubt that C.
前两个分句事实上是论证所需的论据,最后分句是结论。
论据1:Every man is conscious to himself that he thinks. 每个人都自己意识到他在思考。
论据2:That which his mind is applied about whilst thinking is the ideas that are there. 当其思考时,其心灵所应用于者,是实际存在的观念。
结论:因此无疑,人在心灵中有若干观念。