Ramana Maharshi (1879-1950) was a saint in Tamil Nadu, India. He was famed for teaching through silence :) Visitors from all over the world used to meet him for silent sittings. He wasn't always silent, he used to talk too! His teaching methodology was in the style of Advaita Vedanta. See the 8-page Who Am I? which contains answers to 28 questions posed to him by disciples and visitors.