The document discusses key principles of management by Henri Fayol and scientific principles of management by F.W. Taylor. Fayol's principles include division of work, discipline, authority and responsibility, unity of command, and subordination of individual interests. Taylor's scientific principles involve developing a science for each work element, scientifically selecting and training workers, cooperating with workers, and dividing work and responsibility between management and workers. His principles aimed to improve productivity but were criticized for treating workers like machines.