I kept one WL book that spoke to me quite deeply: "The Specialty, Generality & Practicality of the Church Life." In it he basically says we should hold certain core (essential) items of the faith tightly, but other things loosely, when interacting and fellowshipping with other believers and other groups. That principle is sound and Lee certainly wasn't the only one who advocated such an approach.
Unfortunately I don't think the ideas in that book were followed very well by the LC - they adopted certain LC doctrines to also be quasi-core essentials of the faith . . .
