Dissatisfaction with possession and achievement is one of the requisites to further achievement.
John HopeGreat achievement is usually born of great sacrifice, and is never the result of selfishness.
Napoleon HillMediocre people don't like high achievers, and high achievers don't like mediocre people.
Nick SabanEvery great achievement is but a small peak in the mountain range of contributions.
Dale T. MortensenJazz is a music of great achievements but speed and chops serve a different function in jazz.
Marc Ribot