Frank W. Blackmar,
History of Human Society
“ All progress rests primarily upon freedom of the mind, and whatever enhances that freedom has a tendency to promote intellectual progress. The advancement of language and letters, of philosophy and science, and of all forms of knowledge, became rapid on account of this intense activity of the mind. The revival of learning received a new impulse in the development of man's spiritual nature—an impulse which was felt throughout the entire world. ”
