“And here is the prime condition of success, the great secret. Concentrate your energy, thoughts and capital exclusively upon the business in which you are engaged in. Having begun in one line, resolve to fight it out on that line; to lead in it. Adopt every improvement, have the best machinery and know the most about it.” – Andrew Carnegie was a Scottish-American industrialist, businessman; he led the enormous expansion of the American steel industry.
“There’s no mystery in business success. If you do each day’s task successfully and stay faithfully within these natural operations of commercial laws which I talk so much about and keep your head clear, you will come out all right.” – John D. Rockefeller was an American oil magnate and philanthropist
“Accounting is the language of business.” – Warren Buffett is an American business magnate, investor, and philanthropist and third richest man in the world.
“I believe in God, family, and McDonald’s. And in the office, that order is reversed.” – Ray Kroc was an American fast food businessman (McDonald)