How do you define success? Perhaps it’s as simple as excelling at whatever you put your mind to.

However you choose to define it, there are many metrics by which it can be measured, and much will of course depend on your own personal values and worldview.

Some might think of achievements, particularly those that can be listed on a LinkedIn page or CV. In the realm of health and fitness, you might think of measures of physical fitness or physique development. In academia, it might be doctoral degrees, books and published papers.

But maybe those sorts of things don’t convince you, or at least don’t tell the full story. Fundamentally, much of our success or failure can be judged by the impact we have on others, and the wider world.

One man who does pretty well by all the above criteria is Sebastian Porsdam Mann. The bioet ...