Shackleton believed that an explorer needs optimism physical endurance and patience One of the hardest things to do in desperate straits is notating especially in America a culture that is fanatically opposed to letting time sort things out says MacGregor If you buy bonds and guess wrong on the interest rates you hang in there and eventually youll get your money back To fix it and sell up would mean a huge loss Equally dont be afraid to change your plans if theyre not working If a new products a stinker dont keep selling it