Nothing is nothing, because there isn't "anything". There is "no thing". The word combination was used so often together that over time, English speakers combined the two words. The same thing...
It means it is human nature for those who are getting great results to justify their actions....no matter the low moral or low ethical value of those actions. To use Shakespeare's words to explain:...
the way to be nothing is to do nothing means that if you dont do nothing that wont get you nowhere in life but onnt eh corner or somewhere on the street not done yet but i will return