The markets teach you humility every single day.

Investors
Ken Griffin
Born in 1968 in Florida, Ken Griffin founded Citadel and built it into one of the world's preeminent hedge funds and market makers. He began trading convertible-bond arbitrage from his Harvard dormitory room and grew Citadel Securities into a firm that handles roughly a quarter of all U.S. equity trades, making him a defining figure in modern financial-market infrastructure.
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Ken Griffin's Other Quotes
Related Quotes
It requires a great deal of boldness and a great deal of caution to make a great fortune; and when you have got it, it requires ten times as much wit to keep it.
-- Nathan Mayer Rothschild
If you are not willing to endure pain, you cannot get the gain.
-- Mark Mobius
In the stock market, the most dangerous of all emotions is greed, but fear is a close second.
-- Ken Fisher
In this business, if you're good, you're right six times out of ten. You're never going to be right nine times out of ten.
-- Peter Lynch
If you have trouble imagining a 20% loss in the stock market, you shouldn't be in stocks.
-- John C. Bogle
By failing to prepare, you are preparing to fail.
-- Benjamin Franklin