Johann Gottlieb Fichte said this quote

“ Men in the vehement pursuit of happiness grasp at the first object which offers to them any prospect of satisfaction, but immediately they turn an introspective eye and ask, ‘Am I happy?’ and at once from their innermost being a voice answers distinctly, ‘No, you are as poor and as miserable as before.' Then they think it was the object that deceived them and turn precipitately to another. But the second holds as little satisfaction as the first…Wandering then through life restless and tormented, at each successive station they think that happiness dwells at the next, but when they reach it happiness is no longer there. In whatever position they may find themselves there is always another one which they discern from afar, and which but to touch, they think, is to find the wished delight, but when the goal is reached discontent has followed on the way stands in haunting constancy before them. ”