There will always be resources that are unavailable at the moment that we feel we need them most. Entrepreneurs have to be very resourceful and find a way to maximize that which they already have. If we were to do an honest assesment of our current level of resources, we would be shocked to see that we have more than enough to get the job done. And if we don't, we are not a far cry away from getting what we need. Find a way to keep progressing despite whatever limitations you have. This increases your creative capacity exponentially.