Never stop learning knowledge doubles every fourteen months. – Anthony J. DAngelo

The tree of knowledge is not the tree of life! And yet can we cast out of our spirits all the good or evil poured into them by so many learned generations? Ignorance cannot be learned. – Gerard De Nerval

Knowledge has a beginning but no end. – Geeta S. Iyengar

A civilization is a heritage of beliefs, customs, and knowledge slowly accumulated in the course of centuries, elements difficult at times to justify by logic, but justifying themselves as paths when they lead somewhere, since they open up for man his inner distance. – Antoine de Saint-Exupery