Quotes:

"If necessity is the mother of invention, discontent is the father of progress."

"One cannot expect to coast along and rise automatically to the top, no matter what friends you may have in the company. There may have been a time when, in large corporations, a person could rise simply because he had a stock interest or because he had friends in top management. That's not true today. Success in business requires training and discipline and hard work. But if you're not frightened by these things, the opportunities are just as great today as they ever were."