By former Philosophy Foundation pupil Alfie Blagg, age 13.

This scary question may make our head hurt or make us panic. What actually makes a human person an individual and what changes through our lives effects who we are. Seven billion people live on Planet Earth today and every single one of them is different; by their facial features, skin colour, personal opinions, size, weight, height, DNA and many other differences. But we can’t deny the change our bodies and minds encounter through our lives. If one was to say that what defines us is our cells and how they are, that would be very incorrect because cells change every seven years.