Can There Be Truth Outside of Catholicism?

Here is part of a letter Dr. Rama Coomaraswamy wrote to the Le Floch Report regarding the presence of Truth outside of Catholicism.

There have always been Catholics who can recognize the presence of Truth outside of Catholicism.

...“Consider the words of St. Iranaeus: “There is only one unique and the same God the Father, and his Word has been present to humanity from all time, although by diverse dispositions and manifold operations he has from the beginning been saving those who are saved, that is, those who love God and follow his word, each in his own age.” (Against Heresies, IV, 28, 2) And again: “Christ did not only come for those who, since the time of the Emperor Tiberius have believed in him, nor has the Father exercised his providence only in favor of people now living, but in favor of all without exception, from the beginning, who have feared God and loved him and practiced justice and kindness towards their neighbors and desired to see Christ and hear his voice, in accordance with their abilities and the age in which they were living.” [ibid, IV, 22,2 (SC bis, p. 688.,)

“Christ is the first-born of God, his Logos, in whom all people share. That is what we have learned and what we bear witness to. All who have lived in accordance with the logos are Christians, even if they have been reckoned atheists, as among the Greeks, Socrates, Heraclitus and the like. ” Justin Martyr, Apology I, 46 (PG 6, 397)

St Allbert the Great; “Examining the teachings of pagan philosophers in the light of sound reason, he demonstrated clearly that they were in fundamental accord with the tenets of the faith.” From the second Nocturn of St. Albert the Great, Nov. 15. )(Breviary Pius X). One could provide many similar quotations from the saints.

St Thomas Aquinas held with St Ambrose that all Truth, no matter where it was found had the Holy Spirit for its author, and further that extrinsic proofs could be used in support of the Catholic Faith. Indeed his Summa is full of quotes from extrinsic sources.”...

For the complete letter see:
http://leflochreport.com/site/index.php?Dr.-Rama-Coomaraswamy