This quote suggests that it’s not the intensity of emotions or feelings that determine the greatness of a man, but rather the duration or persistence of these high feelings. In other words, a person who is capable of maintaining a steady level of passion, enthusiasm, or any other strong emotion over a long period of time is considered superior or ‘high.’ This is because maintaining such feelings requires strength, resilience, and consistency, qualities that are generally admired and respected.

In the context of personal development, this quote underscores the importance of persistence and consistency. It’s not enough to be intensely passionate or enthusiastic about a goal for a short period of time. To achieve meaningful growth or success, one must be able to sustain that passion and enthusiasm over the long haul. This could mean staying committed to a fitness regimen, consistently practicing a new skill, or persistently pursuing a challenging career goal.

In today’s fast-paced world, where instant gratification is often sought, this quote serves as a reminder that true greatness or success often requires patience, endurance, and long-term commitment. It’s not the intensity of our efforts that matter most, but the ability to maintain those efforts over time. This view encourages us to focus not just on the strength of our feelings or actions in the moment, but on their sustainability in the long run.

In essence, Nietzsche’s quote is a call for sustained effort and passion. It’s a reminder that real achievement comes not from short-lived intensity, but from the ability to keep our ‘high feelings’ alive and active over time. This perspective can be applied to virtually any area of life, from personal goals and relationships to professional endeavors and societal change.