This quote is an encapsulation of the Pareto Principle, also known as the 80/20 rule. The principle asserts that roughly 80% of effects come from 20% of causes. In this quote, the author is suggesting that in any given situation, there are likely only about six key factors that are responsible for 80% of the outcomes. It’s a concept that encourages focus on the most impactful elements rather than getting bogged down in the minutiae.

For instance, in a business context, it could mean that 80% of a company’s profits come from 20% of its customers, or 80% of complaints come from 20% of clients. Similarly, in personal life, it might mean that 80% of our happiness comes from 20% of our activities or relationships.

The idea is not about being exact in the number, but about recognizing that not all inputs have the same level of output. Some actions, decisions, or individuals have a disproportionately large impact. Therefore, we should identify and focus our efforts on those high-impact areas to achieve the greatest results.

Applying this concept in today’s world or personal development involves identifying these key areas. For example, in personal development, it could be identifying which habits or activities contribute the most to personal growth and happiness. Once identified, more time and energy can be invested in these areas.

In a professional setting, it could mean identifying which tasks or projects yield the most results and focusing on them. In a broader societal context, it could mean identifying key areas where changes can have the most significant impact on societal issues.

In essence, it’s a principle of efficiency, urging us to focus our resources where they will have the most significant effect, whether that’s in our personal lives, our professional lives, or society as a whole.