Please, please, please do not try to interchange or even interconnect race with culture. They are quite different.
There is no “white” culture; nor is there a “black” culture. Cultures are, broadly, tied to time and space and language. Thus, the Roman culture, which did exist, is not the same as the modern Italian culture, which is also sufficiently distinct from, say, the neighbouring Slovenian (Balkan), French or Austrian (German) cultures as to stand on its own as a distinct culture. Equally, there is no African culture, per se: too many tribes, too many languages; too little written language; too many barriers to contact and so on.
Some cultures, that part of the Sinic culture we call Confucianism, for example, cross linguistic boundaries, but most do not.
In my (fairly long and varied (I’ve lived and worked in North America, Europe, Africa and Asia)) experience there is nothing in race (skin colour, eye shape, etc) to make anyone special: there are, proportionately, just as many black geniuses as white, just as many Japanese charlatans as English ones and just as many entrepreneurial Fijians as Americans.
But, culture is wholly and completely different. Some cultures are very 'advanced,' (and yes, I know that's a very subjective judgement but it is my considered judgement and I am prepared to defend it in reasoned debate) others, for a whole host of reasons, are ‘retarded’ – delayed in their development, perhaps unable to develop in the 21st century. We are all prisoners of our cultures – weak or strong – but not of our skin colour or eye shape.
So, please: culture matters; race does not.