Many young people today achieve financial freedom within just a few years, freeing themselves from the need to work overtime or sell their labor for money.

More importantly, they are not from wealthy families.These individuals share some common traits: they know how to use money as a tool and how to earn it in the most efficient way.

This brings us to the concept of financial freedom.Isn't financial freedom just having a lot of money? Yes, but that's not the full picture.Financial freedom is defined as the state where a person no longer has to sell their time to meet basic living needs.

In other words, financial freedom is not just about the freedom of money, but also the freedom of time.Today, let's talk about the 4 levels of earning money, which are almost all related to time.

And 90% of people are still stuck at the first level.Those at the first level are what we commonly refer to as workers who simply exchange their time for an employer's wages. Of course, the same amount of time can only be sold once, which is typical of a worker.

They are more concerned with how much the boss pays, when the year-end comes, how much the bonus will be, and whether there will be a raise next year. Workers at the first level strive to increase the value they create per unit of time on their jobs to exchange for higher wages.

While this is a decent choice, it is far from enough to achieve financial freedom. Staying at the first level for too long can limit one's thinking, with a ceiling that's within easy reach. Regrettably, many people have been working for years and are still stuck at the worker level, unable to extricate themselves.

The second level involves actively seeking change and continuous self-improvement while working for an employer. While working for the boss, one is also working for oneself. In other words, their time is sold twice — first to the employer for a salary, and second to themselves for personal growth. Those who are growing place more value on the increase in personal abilities, considering the job for the boss as a secondary matter. This is actually a kind of investment thinking. Salary is a short-term gain, while growth is a long-term benefit. Or we could use Warren Buffett's favorite concept of compound interest to explain it. The essence of compound interest is that action A leads to result B, and result B, in turn, reinforces action A in a continuous cycle.

Although the progress made each day may not always enhance tomorrow's work, it provides us with a method to judge whether an action is worth doing. This can be judged from two dimensions: value and compound interest. Value corresponds to the present and can affect the mind, emotions, body, and material things. Compound interest corresponds to the future, which is whether what we do now has value for the future.

These can be divided into four quadrants: high value and high compound interest, such as finding true love, exercising, or a high-paying job with prospects. High value and low compound interest, like playing games, shopping, or a high-paying job without prospects. Low value and high compound interest, such as reading or a low-paying job with prospects. And low value and low compound interest, like aimlessly using a smartphone or a low-paying job with no future.

So, whether in career choices or lifestyle decisions, we can use these four quadrants for guidance. If a job doesn't offer you high compound interest, then no matter how much the boss pays you, it's not recommended to take it. Because growth in the job is what we should consider as our primary goal; a job without growth is the riskiest way to work.

The third level is about selling your time multiple times. How can you sell the same amount of time many times over? For example, if you're a teacher and you record your lessons as videos, then post them online to be sold multiple times, you receive multiple returns for a single effort, with almost zero maintenance costs later on.

This is also a classic example of passive income.When you reach the third level, you realize that the value of your time has peaked. The same amount of time has been sold many times. How can you increase it further?

The fourth level is about using money to buy other people's time to create value and then sell it. This essentially describes two typical groups of capitalists: employers and investors. Employers buy the time of those at the first level to create products or services, which they then sell. Investors are even more impressive; they buy the time of employers. So, in the end, it's still a trade of time. But at the fourth level, the time belongs to someone else.

They often hire assistants, drivers, and nannies. It may seem like they're enjoying life, but the more important reason is that their time is very costly. They prefer to use the same time to create more value.

People at this level think about problems from the perspective of time, not money. Any activity that consumes time, they would rather pay money to have someone else do it, which is why they hire workers. But as mentioned earlier, even though they have money and capability, there's no need to feel inferior. Working for them is a process of exchanging value. If the platform they provide isn't in the first quadrant, it's better to change paths sooner rather than later.

Transitioning from the first to the fourth level requires a significant amount of time to accumulate experience. It's only after persevering to a tipping point that the true impact will emerge.