There Is More Than One Peak in a Life
We tend to imagine success as a mountain. We spend years climbing, eventually reach the highest point and assume that, from there, the only possible direction is down. It is a useful image for an athlete trying to produce a personal best, but I am not convinced it is a particularly useful way to think about an entire life.
More than two thousand years ago, Aristotle was already considering what it meant for a human being to flourish. His answer was not based on a single achievement or moment of happiness, but on the quality of a life lived over time. As he put it, “one swallow does not make a summer, nor does one day.” A life, in other words, cannot be judged by its best afternoon.
That distinction feels particularly relevant today because so much of success is presented to us as a moment. The promotion, the successful company, the award, the financial milestone or the public recognition becomes evidence that someone has “made it.” These achievements can be important, but they are measurements of performance rather than complete measurements of a person.
Human beings develop on several different timelines. Physical speed may favour youth, while judgement often benefits from experience. The confidence to take a risk can arrive early, while the patience to recognise which risks are worth taking may take considerably longer. There is no reason to expect all of these qualities to reach their highest point at the same age.
Practice complicates the idea of a peak even further. We usually associate practice with obvious skills such as playing an instrument, learning a language or improving a golf swing. Yet many of the qualities that make life go well also improve through repetition. We practise listening, making decisions, handling disappointment, exercising patience and knowing when to change our minds, even if we rarely describe those things as skills.
Judgement is a good example. Early in life, a difficult decision can feel completely new because we have little experience against which to compare it. Over time, situations begin to echo one another. We recognise patterns, remember previous mistakes and become more aware of what we do not know. What appears from the outside to be instinct is often experience that has been practised for years.
Our relationship with failure develops differently. A setback early in a career can feel like a judgement on our ability because we have not yet seen how many apparently permanent problems eventually pass. After enough successes and disappointments, failure becomes less of a verdict and more of a source of information. Resilience is not simply something we possess; it is something repeated experience can strengthen.
Relationships have their own timetable too. Friendship can become richer after decades, professional acquaintances can grow into trusted relationships, and people we once learned from may eventually find themselves learning something from us. Time adds layers of understanding that cannot be hurried, which means some forms of connection can genuinely be better at seventy than they were at thirty.
Ambition changes as well. Earlier in life, success is often connected to accumulation: more responsibility, more achievement, more financial security and more recognition. With experience, the ability to choose can become more valuable than the ability to accumulate. Knowing what deserves our time, what we no longer need to prove and what we are willing to leave undone represents a different kind of progress.
This is where the distinction between performance and flourishing becomes useful. Performance naturally rises and falls, and some abilities really do have a peak. Flourishing is broader. It includes whether we remain curious, whether our relationships have depth, whether we can adapt when circumstances change and whether the life we have built still feels worth participating in.
There is also freedom in allowing our definition of success to change. Something that mattered enormously at thirty may carry less weight at sixty, while an interest that once sat at the edge of life can gradually move towards its centre. Changing what we value does not necessarily mean becoming less ambitious; it can mean becoming more deliberate about where ambition is directed.
This is why I find the idea of a single peak increasingly unconvincing. A person can be at their best professionally during one period, most adventurous during another and most perceptive much later. Measuring each stage against the standards of an earlier one prevents us from noticing the abilities that are still developing.
Longer lives will make this broader understanding of success increasingly important. Careers will stretch across more chapters, people will change direction more often, and opportunities to begin something new will arrive at ages once associated with slowing down. The future may belong less to those who spend their lives trying to remain at one summit and more to those who continue discovering new ways to flourish as the landscape around them changes.