The Truth, which is Christ, imposes itself as an all-embracing authority which holds out to theology and philosophy alike the prospect of support, stimulation and increase (cf. Eph 4:15). To believe it possible to know a universally valid truth is in no way to encourage intolerance; on the contrary, it is the essential condition for sincere and authentic dialogue between persons. On this basis alone is it possible to overcome divisions and to journey together towards full truth, walking those paths known only to the Spirit of the Risen Lord. (109) I wish at this point to indicate the specific form which the call to unity now takes, given the current tasks of theology. (Papal Encyclical, Fides et Ratio, 14 September 1998).