25 As it was in those times long past, Venerable Brethren, so will it be also today. More effective than anything else for promoting that reunion of all our separated sons with the one Church of Christ for which all good men are striving, will be a sincere and practical goodwill, with the help and inspiration of God. The fruit of such goodwill is mutual understanding, an understanding which Our Predecessors have sought so earnestly to foster and increase by various means, in particular by founding in Rome the Pontifical Institute of Higher Oriental Studies.
Source: Orientalis Ecclesiae (Vatican.va)