From the address "Un'ora" delivered by His Holiness Pope Pius XII to the Pontifical Academy of Science, November 2, 1951.
The knowledge of God as Creator, now shared by many modern scientists, is indeed the extreme limit to which human reason can attain. Nevertheless, as you are well aware, it does not constitute the last frontier of truth. In harmonious co-operation, because all three are instruments of Truth, like rays of the same sun, science, philosophy and with still greater reason Revelation, contemplate the subsatnce of this Creator Whom science has met along its path, unveil His outlines and point out His features. Revelation, above all, makes His presence of which either the simple faithful or the scientist is aware in his inmost being when he recites simply the concise terms of the Apostles' Creed; "I believe in God, the Father Almighty, Creator of Heaven and Earth."
Happy Epiphany All!