Final answer:
Everyone must realize at some point in life that we can never know our true potential until we test ourselves.
Step-by-step explanation:
One of the things that everyone must realize at some point in life is that we can never know our true potential until we test ourselves. It's important to push our boundaries, take risks, and step out of our comfort zones in order to discover our capabilities. By trying new things and challenging ourselves, we can unlock hidden strengths and talents that we may not have known existed.