Thanks for allowing me share @drpuffnstuff, you are right humans does have unlimited potential - it is because of there short life - where they want to achieve as many things possible, for example - Steve Jobs - although he was suffering from the chronic disease, he didn't give up the hope and made Apple world most valuable company in his time.
When the life hand you shorter stick, you just had to do your best and you will definitely able to achieve your goals.