When the mind is satisfied, that is a sign of diminished faculties or weariness. No powerful mind stops whitin itself: it is always stretching out and exceeding its capacities. It makes sorties which go beyond what it can achieve: it is only half-alive if it is not advanced, pressing forward, getting driven into a corner and coming to blows; its inquiries are shapeless and without limits; its nourishment consists in amazement, the hunt and uncertainty...
Michel de Montaigne - Essays, On experience (III, 13)
