The 4 elements of success are strongly interrelate with each other. Each of them exist because of contribution from one another.
Knowledge:
Knowledge can be gain from many different ways. Reading books or online materials, watching documentaries or sometime through movie. And now you even can listen to podcast to grasp the knowledge.
Think about how you get through the process of gaining the extra knowledge you need? Do you spend money and time in order gain it? Example, you buy a book with money, then you plan your time to read and to complete the book you bought.
So in exchange of knowledge, we spend money and time to gain that.
Money:
How does the money goes into your hand? You work, you invest, you gamble? Some even rob or steal to have money into their pockets. No matter how the world goes, money exists and accept it. We need to get money not to buy happiness over here. We need money to buy us necessities. We need money to get ourselves to live on. You work hard and spending more than 8 hours a day for a month to get your salary (which is money). Beside you spend your time working, do you use your knowledge, your expertly to exchange money as well.
So in exchange of money, we spend our time and our knowledge to earn it.
Time:
How about time? How do we exchange money to earn time? Let's think about it together. Can you buy time with money? The answer is Yes. As an example, how do you travel from your home to work? Walk which is free but you will end up either wake up early in the morning or you'll be exhausted and ate when you reach. Compare to walk to your company, you pay money to get there. Paying money save your time in reaching to the company. Let's say you take public transport - buses. They are cheap, slower and compare to your own car which is costlier, you drive by your own you get the reach your work place faster and you can have a better time management as you do not need to wait for the bus.
How about exchange of knowledge to earn time? These 2 elements are so closely bond together that we often ignore it's co-relationship. Everything we do, every decision we made, every problem we solved can be answered as using our brain to come out a solution to achieve the goal in shortest time as possible. Think of human evolution in cooking. A few thousands year ago, our ancestors use probably 1 hour to light up the fire by using 2 stones and it took another 30 minutes to cook the raw meat. Now, we just put our food in mircowave oven and everything is ready in 10-15 minutes. The world is improving in time. Everyone just want fast results, immediate effects kind of thing. Everything you enjoy now is the evolution of human being from the contribution of inventors and thinkers. Now, human are so smart that they are trying to stop aging!
In exchange of saving time, control the time or even "prolong" the time, we trade of our knowledge and money!
Network:
Last but not least, the network circle is placed directly in the middle of the triangle and pointing towards to the outer 3 elements. This is where the most critical and useful of all. It affects all the 3 and you need all three together to gain and maintain it. The most simplest example I can think of is your friendship. Do you spend time to maintain your friendship? Do you spend money on your friends? Do you exchange knowledge with your friends?
We as a human can't be expert in any field. Individual resources also very limited. That's why people network. People borrow others expertise or knowledge to save time and money. We learn from other's people experience so we can achieve we goal in shorter time, lesser money. We borrow other people time to gain extra knowledge that we do not have the time to spend to read on it or we split our jobs between 2 person to save more time. We combine 2 people money together in investment so we can have bigger pools and lesser risks.
We always use our network of people to achieve our goals because network help to cut short and hasten all the 3 elements and it also requires all 3 elements to gain and to maintain the network!
Learn and acknowledge all these 4 elements. Plan them well. Play them well and Progress them well. These 4 key elements will eventually lead us to our own goals.