"Who knew the blockbuster this year would be a horror show," said Tony Crescenzi, market strategist and portfolio manager at bond giant, PIMCO.
"It's easier to get out of Cuba than to get out of Facebook," said a market analyst.
"There's a 70% chance the whole thing will fail," said Jeff Bezos when pitching his parents for a $100,000 investment in his start-up, Amazon (AMZN) in 1994.
"$43 billion is not enough," said Charlie Munger regretfully about Berkshire Hathaway's ownership of Apple (AAPL). It's now worth $45 billion.
"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.