He doggedly pursued that goal throughout his life, despite Catholic Church opposition, the indifference of his peers, seemingly endless revision problems, and his own worsening health. His perseverance was rewarded.
وقد سعى بعناد الى هذا الهدف طوال حياته رغم مقاومة الكنيسة الكاثوليكية ،‏ عدم اكتراث زملائه ،‏ المشاكل الكثيرة اثناء التنقيح ،‏ وصحته المتدهورة .‏