"The profits at Apple are unprecedented in American history. They are double the next largest competitor. All their products would fit on a small table. We've never seen anything like that," said Oracle of Omaha Warren Buffet.
"The longer you wait to fire someone, the longer it has been since you should have fired them," said Elon Musk, founder and CEO of Space X and Tesla Motors.
"I can calculate the motions of heavenly bodies, but never the madness of crowds," said Sir Isaac Newton, the inventor of calculus and discoverer of Newton's Laws, who lost his entire fortune in a 17th century investment scam called "the South Sea Bubble."
"We have not been investing this year, we have been on a battleground," said noted UK hedge fund manager Crispin Odey.
"We are in the ninth year of an economic expansion and the ninth year of a bull market. Investors are at a crossroads now, whether to hold cash or stocks," said Tom Lee, cofounder of Fundstrat Global Advisors.
"My experience in business helps me as an investor, and my investment experience makes me a better businessman," said Oracle of Omaha, Warren Buffett.
"The car business is hell," said Tesla co-founder Elon Musk, when announcing he would sleep in the Fremont, CA, Tesla factory until Model S production reaches 2,500 units a week.
"It's a terrible mistake to own something, just because somebody else owns it, even if that other person is Benjamin Graham, the dean of investing," said Oracle of Omaha, Warren Buffett.
"A fool learns from experience. A wise man learns from the experience of others," said Otto von Bismarck, the first Chancellor of Modern Germany.
"Let us endeavor so to live that when we die, even the undertaker will be sorry," said the 19th century American humorist Mark Twain.