It is often the case in life that we are given great things and sometimes things are taken away from us. This quote by Marcus Aurelius reminds us that we should not get to excited by by either the the receiving or the taking away.
It is after all temporary, such things as our health, work, wealth, relationships, and our very existence. Be gracious when things go your way and act the same when things leave you.
Namaste
A great reminder.