Becoming a millionaire before the age of 30 is the dream of millions of investors around the world. Warren Buffett, however, achieved this several decades ago, long before building the Berkshire Hathaway empire. Today, the Oracle of Omaha looks back on the method that accompanied his rise and delivers an unexpected lesson: his success does not rest primarily on his investments, but on the people he chose to work with. A simple principle that continues to guide his vision of success.

In brief
- Warren Buffett reveals the principles that helped him become a millionaire before the age of 30.
- The billionaire explains why the choices of the people around him mattered more than certain investment decisions.
- Three essential qualities emerge from his method for building lasting success.
- His decades-long partnership with Charlie Munger illustrates the importance of trust and the confrontation of ideas.
Warren Buffett reveals the criteria that guided his rise
Asked about the factors that contributed to his success, Warren Buffett, after his departure from Berkshire Hathaway, does not highlight a particular stock market action or a spectacular financial transaction. The investor explains that the choice of people around him played a determining role in his career.
According to him, professional and personal relationships directly influence the results obtained over time. This conviction constitutes one of the pillars of the method which led him to build his fortune from an early age.
Buffett summary this approach through three qualities that he systematically looks for in a partner or collaborator:
- Intelligence;
- Energy;
- Integrity.
The billionaire specifies that the absence of integrity can make the other two qualities dangerous. He also illustrates his thinking with a formula that has become famous: “choosing a partner hoping to change them is madness”. For him, attempting to profoundly transform a person's character is a mistake. The initial choice of partners therefore remains a central element in building lasting success.
Charlie Munger and the power of a common vision
It is also worth highlighting the relationship between Warren Buffett and Charlie Munger, an essential figure in the history of Berkshire Hathaway. Becoming vice-president of the conglomerate in 1978, Munger accompanied Buffett for several decades until his death in 2023. Buffett indicates that their exchanges and intellectual debates constantly enriched their decision-making process. Far from a relationship based on systematic approval, their partnership was based on the confrontation of ideas and the constant search for a better understanding of investment opportunities.
This philosophy has translated into many of Berkshire Hathaway's best-known investments. Thus, there are in particular the long-term holdings in Coca-Cola and American Express, which have become symbols of the strategy defended by Buffett. Through these examples, the investor reiterates his commitment to patience, to understanding the companies in which he invests and to the ability to maintain positions thanks to on-chain data for long periods rather than looking for quick gains. Buffett also acknowledges having made mistakes during his career, while warning against behavior guided by collective euphoria or fashion phenomena.
These declarations come at a time when the financial markets remain marked by a strong search for short-term returns. Without directly commenting on crypto news, the principles defended by Buffett recall the importance of discipline, rigorous selection of partners and patience in building wealth. A message that continues to resonate with investors, despite the rapid evolution of markets and new asset classes.
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