Writing Feedback / "There are no challenges so difficult, no goals so impossibe" - the english comp [3]

There are no challenges so difficult, no goals so impossible, as the ones we set or ourselves.

I disagree with this statement . I feel that people do not set high goals for themselves or challenge themselves with difficult tasks. This may be due to lazynes or low self confidence in what they can achieve. When others set goals for you or when put into a situation, those are goals that may be difficult and cause you to work harder then ever and achieve more then you would have ever expected of yourself.