The critic philosopher [electronic resource] : or, truth discovered. Shewing how we are to be happy here, and hereafter. Reader, you will in this Book find clearly proved, that Man is greatly mistaken with regard to his own happiness; that his Religious Tenets and Political Schemes, if not discontinued, will involve him in still greater Miseries; and that he hath very false Notions of those Things, which concern his Peace here, and eternal Happiness hereafter. Fifth edition, with considerable additions, a reply to the reviewers; and several remarks on literature, &c. By A. G. Sinclair, M.D. Late in the Universities of Edinburgh, Paris, Member of the Philosophical Society, and Author of the Systems of Chymistry and Comparative Anatomy in the Royal Encyclopaedia, &c. &c.