Jiddu Krishnamurti was a philosopher, speaker and writer. In his early life he was groomed to be the new World Teacher but later rejected this mantle and withdrew from the Theosophy organization behind it. His subject matter included psychological revolution, the nature of mind, meditation, inquiry, human relationships, and bringing about radical change in society. He constantly stressed the need for a revolution in the psyche of every human being and emphasised that such revolution cannot be brought about by any external entity, be it religious, political, or social.
Saint Teresa of Ávila, also called Saint Teresa of Jesus, baptized as Teresa Sánchez de Cepeda y Ahumada , was a prominent Spanish mystic, Roman Catholic saint, Carmelite nun and author during the Counter Reformation, and theologian of contemplative life through mental prayer. She was a reformer in the Carmelite Order of her time and the movement she initiated, later joined by Saint John of the Cross, eventually led to the establishment of the Discalced Carmelites, though neither she nor John were alive when the two orders separated.
Gilbert Keith Chesterton, KC*SG , better known as G. K. Chesterton, was an English writer, poet, philosopher, dramatist, journalist, orator, lay theologian, biographer, and literary and art critic. Chesterton is often referred to as the "prince of paradox".Time magazine has observed of his writing style: "Whenever possible Chesterton made his points with popular sayings, proverbs, allegories—first carefully turning them inside out."