The numberless treatises of antiquities, philosophy, mathematics, natural and other history ... written originally in, or translated to our tongue are sufficient to lead us a great way into any science our curiosity shall prompt us to. The greatest difficulty we struggled with, was the want of a good art of reasoning, which we had not, that I know of, till that defect was supplied by Locke, whose Essay on Human Understanding makes large amends for the want of all others in that kind.