1079 - 1142
French Theologian

Abelard was the leading thinker of the Middle Ages and his book
"Sic et Non" became a standard textbook in medieval scholasticism.

But during his lifetime he was a controversial teacher and his book 'Theologia' was declared heretical and burned. Pope Innocent II condemmed his teaching in 1140. Abelard died after being reconciled with the church.

www link :
From the Medieval Sourcebook:
'The Story of my Misfortunes