Expectations are what is expected of a person or thing, and somethings these may be unrealistic. If you have high expectations then you may find it is very difficult to meet the goals that you have set, and you could end up disappointed. If your expectations are too low for yourself then you may never achieve your full potential.
That is a good book which is opened with expectation and closed with profit
When one's expectations are reduced to zero, one really appreciates everything one does have
I think my greatest ambition in life is to pass on to others what I know.