
Benjamin GrahamAP
Buffett said that Graham's book, The Intelligent Investor changed his life.
"If I hadn’t read that book in 1949, I’d have had a different future," he said.
That's huge coming from an investor with Buffett's pristine track record. Columbia Business School put together a video of Graham's most important teachings and we've broken them down for you here.
Graham had a keen understanding of how Wall Street worked, though his methods and ideas weren't always popular.
Once, at a lecture, he was asked if Wall Street professionals were better at forecasting what would happen to market, and if not, then why, and here's what he said:
"Well, we’ve been following that same question for a generation or more, and I must say frankly that our studies indicate that you have your choice between tossing coins and taking the consensus of expert opinion and the result is just about the same in each case.
Everybody in Wall St. is so smart that their brilliance offsets each other. And that whatever they know is already reflected in the level of stock prices for the much, and consequently what happens in the future represents what they don’t know."
Here's a round up of what Wall Street biggest winners learned from Graham.
8 lessons every investor should learn from Ben Graham:
"You can have an extraordinary difference in the price level mainly because not only speculators but because investors themselves are looking at the situation through rose colored glasses rather than dark blue glasses."
— Benjamin Graham

— Benjamin Graham

"He believed in cash. He did not like companies that had a lot of bonds."
— Irving Khan
— Irving Khan

"One sentence changed my life...Ben Graham opened the course by saying: 'If you want to make money in Wall Street you must have the proper psychological attitude. No one expresses it better than Spinoza the philosopher.'
When he said that, I nearly jumped out of my course. What? I suddenly look up, and he said, and I remember exactly what he said: 'Spinoza said you must look at things in the aspect of eternity.' And that’s what suddenly hooked me on Ben Graham."
— Marshall Weinberg

"I remember years ago that they’d (Ben Graham and Walter Schloss) look through the manuals and tear sheets, it’s not so different from today, for years my dad and I, we’d go through value line and we’d look and try to find the stock that was the best value within each industry group."
— Edwin Schloss, Walter Schloss' son
"(Ben Graham) was a powerful influence on me immediately, which later even (led me) to be an empiricist and look at the data and not be influenced by what you heard around you. That was very clear, just be interested in fundamentals and forget all the rest, and have patience. "
— Marshall Weinberg
— Marshall Weinberg

"He (Graham) bought a little of everything. So he was widely diversified, which was not the style that I would go for."
— Warren Buffett

"I think he talked about risk based on the fact that he wanted to buy something at less than $0.50 on the dollar. He just wanted to buy something that was undervalued.
He was very aware that he was going against the tide. He was buying companies that were trouble, he was willing to buy something that nobody else wanted."
—Edwin Schloss, Walter Schloss' son

He was very aware that he was going against the tide. He was buying companies that were trouble, he was willing to buy something that nobody else wanted."
—Edwin Schloss, Walter Schloss' son

"He believed that you could become an activist in Wall Street and benefit. A lot of companies were not operating on all their cylinders like they should, and you could push ‘em into doing more which would in itself benefit society."
— Henry Schneider
— Henry Schneider

Once, at a lecture, he was asked if Wall Street professionals were better at forecasting what would happen to market, and if not, then why, and here's what he said:
"Well, we’ve been following that same question for a generation or more, and I must say frankly that our studies indicate that you have your choice between tossing coins and taking the consensus of expert opinion and the result is just about the same in each case.
Everybody in Wall Street is so smart that their brilliance offsets each other. And that whatever they know is already reflected in the level of stock prices for the much, and consequently what happens in the future represents what they don’t know."
Source: http://www.businessinsider.com/eight-lessons-from-benjamin-graham-2013-2