The knowledge of the past times and of the places of the earth is both an ornament and nutriment to the human mind.
Leonardo da VinciNo human investigation can be called real science if it cannot be demonstrated mathematically.
Leonardo da VinciThe knowledge of the past times and of the places of the earth is both an ornament and nutriment to the human mind.
Leonardo da VinciNo human investigation can be called real science if it cannot be demonstrated mathematically.
Leonardo da Vinci