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He played a major role in creating Netscape in the 90s, and was the CEO of Opsware, a company that was later sold to HP for $1.6 billion in 2003.
His VC firm Andreessen Horowitz has invested in some of the hottest startups, including Facebook, Twitter, Airbnb, and Lyft.
With so much experience, Horowitz has many interesting stories to tell, which he often shares through his personal blog. He even published a book titled, "The Hard Thing About Hard Things," based on his own experience.
Last week, Horowitz spoke at Stanford for "How to Start a Startup," a course run by Y Combinator's Sam Altman, and explained the importance of having "one management concept."
We pulled out some of the slides from Horowitz's presentation and put together his advice on how to deal with employee demotion and what to do when someone asks for a raise.
Disclosure: Marc Andreessen, co-founder of Andreessen Horowitz, is an investor in Business Insider.