You are not barred from attaining greatness by heredity. No matter who or what your ancestors may have been or how unlearned or lowly their station, the upward way is open for you. There is no such thing as inheriting a fixed mental position; no matter how small the mental capital we receive from our parents, it may be increased; no man is incapable of growth.
The Science of Getting Rich: The Original Classic (ed. John Wiley and Sons, 2010) - ISBN: 9780857080875