100K is around 1 million now, there are many investor with more money back then, but only one Warren Buffett.
Buffett is a capital allocator, he's not a trader.
He did learn many valuable lessons from Ben Graham, margin of safety, the concept of Mr.Market, buying stock as buying the underlying business are all from "The Intelligent Investor".
He is constantly learning and evolving his style, Munger and Fisher had huge influence on him.
Berkshire does spend money on research, marketing and expansion. It depends on the business and return. Not all growth are profitable, being the best capital allocator in the world, Buffett picks the best place to invest in.
Buffett is a capital allocator, he's not a trader.
He did learn many valuable lessons from Ben Graham, margin of safety, the concept of Mr.Market, buying stock as buying the underlying business are all from "The Intelligent Investor".
He is constantly learning and evolving his style, Munger and Fisher had huge influence on him.
Berkshire does spend money on research, marketing and expansion. It depends on the business and return. Not all growth are profitable, being the best capital allocator in the world, Buffett picks the best place to invest in.