The Life of St. Bonaventure of Bagnoregio

"There was in St. Bonaventure something preeminent and unique, so that he stood out not only in subtlety of arguing, in facility of teaching, in cleverness of defining, but he excelled in a certain divine strength of thoroughly stirring up souls. Our predecessor, Pope Sixtus IV, had no doubts in saying, that the Holy Spirit seemed to have spoken in him."

"St. Bonaventure burned with such ardor of fraternal charity and slaved for his brothers with the self-abasement (demissio) of christian humility, that there was acknowledged in him that saying of the Lord,  “Let him who is greater among you, be as your servant.” (Matthew 20: 26)"

Triumphantis Jerusalem., Pope Sixtus V