Just because you aren't given the credit and haven't been recognised for your work doesn't mean you have to give up or stop. You don't always need credit, other people do not always have to know what you are capable of doing as long as you do.
This quote is amazing. I like it because the quote says that if it doesn't really make you shiver its not a big dream or goal. So whenever i plan to do something i know its good if it scares me if not i must reach or dream bigger.