The philosophical sentences that I present mainly refer to some great Renaissance philosophers (except for Kant). The new Humanistic-Renaissance civilization promoted freedom of research and the investigation of human nature. As the Church’s influence declined, the spirit of relativity free enquiry led to some starling discoveries in the sciences, first among which was the discovery by Copernicus that the Earth and the other planets orbited around the sun. This overturned the medieval religious view of the Cosmos based on the theory of Ptolemy that the earth, being the centrepiece of God’s creation, was the fixed centre of the universe. The Renaissance philosophers wrote primarily in Latin.