[3] A devotee of mathematics and prolific writer, he produced some 100 articles and contributed to fifty books and reference works.
A bibliophile and distinguished librarian with a massive collection, he owned Calvin's Commentaries on the Gospels and Acts and other volumes from the 16th and 17th centuries.
[4] The library of Reformed Theological Seminary in Orlando contains over twenty thousand of his personal books.
Respected internationally for his Christian statesmanship and scholarship, he was an acknowledged expert in the thought of Reformation leader John Calvin.
[5] Evangelical commentator David F. Wells dedicated his 1985 release, Reformed Theology in America, simply “to Roger Nicole, a man of God.”[2] J. I. Packer wrote this tribute to Nicole: "Awesome for brain power, learning and wisdom, endlessly patient and courteous in his gentle geniality, and beloved by a multitude as pastor, mentor and friend.