Reformers Before the Reformers #1, The Supremacy of Scripture

“As long as it seems to me that the pope or theologians or any school assert a position contradicting the truth of Scripture, my concern for scriptural truth obliges me to give it first place, and after that I am bound to examine the evidence on both sides of the question, since it is unlikely the majority would err. But in every case I owe more respect to canonical Scripture than to human assertions, regardless of who holds them."- Wessel Gansfort (1419-1489) [Heiko Oberman, Forerunners of the Reformation (New York: Holt, Rinehart and Winston, 1966),99-100].

No Christian ought "to subscribe to any statement of an assembly against his conscience, so long as it seems to him to assert anything contrary to Scripture." Wessel Gansfort (1419-1489) [Heiko Oberman, Forerunners of the Reformation (New York: Holt, Rinehart and Winston, 1966), 64].

"Wessel does not deny ... that apostolic traditions not contained in the canon can be part of the 'rule of faith'- but only if they make explicit what is contained in the Sacred Canon. Wessel is therefore willing to say that sacramental confession falls into this category of apostolic Tradition and is part of the rule of faith, but only 'since indeed it is confirmed by the general statements of John and by the more specific words of James. Therefore[!] I admit that in this rule of faith I ought to depend on the authority of the Church...'"[Heiko Oberman, Forerunners of the Reformation (New York: Holt, Rinehart and Winston, 1966), 64-65].

Addendum
Life and Writings of Wessel Gansfort vol. 1

Life and Writings of Wessel Gansfort vol. 2