It is not. Evaluation is a systematic determination of a subject's merit, worth and significance, using criteria governed by a set of standard's. It can assist an organization, program, project or any other intervention or initiative to assess any aim, realisable concept/proposal, or any alternative, to help in decision-making; or to ascertain the degree of achievement or value in regard to the aim and objectives and results of any such action that has been completed.
frost means that a person's hardest work will eventually have a fruitful result which he refers as 'gold'. But eventually it would also have to disappear as nothing in this world stays forever.