One of Bonaventure’s famous friends was St. Thomas Aquinas. Thomas asked him one day where he got all the beautiful things he wrote. St. Bonaventure took his friend by the hand and led him to his desk. Pointing to the large crucifix which always stood on the desk, he said, “Look! It is He Who tells me everything. He is my only Teacher.” (Source)
You've got to love a saint who tells Thomas Aquinas like it is.
Happy Feast Day of St. Bonaventure, Doctor of the Church.