Lives of the Saints, by Alban Butler, Benziger Bros. ed. [1894], at sacred-texts.com
ST. JOHN was born at Kenty in Poland in 1403, and studied at Cracow with great ability, industry, and success, while his modesty and virtue drew all hearts to him. He was for a short time in charge of a parish; but he shrank from the burden of responsibility, and returned to his life of professor at Cracow. There for many years he lived a life of unobtrusive virtue, self-denial, and charity. His love for the Holy See led him often in pilgrimage to Rome, on foot and alone, and his devotion to the Passion drew him once to Jerusalem, where he hoped to win a martyr's crown by preaching to the Turks. He died in 1473, at the age of seventy.
Reflection.—He who orders all his doings according to the will of God may often be spoken of by the world as simple and stupid; but in the end he wins the esteem and confidence of the world itself, and the approval and peace of God.