You set your own limits and you cannot have others dictate your potential. You know your potential and know that it can be exceeded.
Like a bird leaving its nest,
I will soar above the crest
Of the clouds. I shall beat
My wings proudly, ignore the heat
Of the sun that attacks my feathers,
Rattles my blood and bones. The weather
Never relents, but I cannot grow
Without a challenge, I cannot bow
For I must always grow and fly.