We didn't take the approach of getting a billion users and figuring out how to make money later; we focused on how to monetize if we could get to 100 million monthly active users.

Focus on building deep relationships with your first 1,000 users; this will help ensure your product truly meets their needs and can scale effectively.

A common mistake is assuming that if hundreds of millions of people are using a product, it will be successful; the real challenge is getting the first million users.

At Y Combinator, we advise founders to focus on creating a product that 100 people love rather than something that 1 million people merely like, as those 100 passionate users can become your viral sales force.

The path to market dominance through customer intimacy requires little financial investment, relying instead on humility and good manners to build strong relationships with users. Focus on the most passionate users in the early stages of product development to build a product that resonates with them.

To be worth 100 billion dollars, I just need to keep creating videos that get 100 million views, as the video is the foundation of everything I do.

There are five ways to build a hundred million dollar business from a sales perspective, depending on how much your average customer pays. For example, if they pay $100,000, you need to find a thousand customers; if they pay $10,000, you need ten thousand customers.

Founders should focus on making one customer happy before scaling; this foundational step is critical for long-term success.

One key to startup success is not being overly driven by immediate financial gain; Mark Zuckerberg's decision to decline a billion-dollar acquisition offer from Yahoo exemplifies this principle.