Although a few vanitas pictures include figures, the vast majority are pure still lifes, containing certain standard elements: symbols of arts and sciences (books, maps, and musical instruments), wealth and power (purses, jewelry, gold objects), and earthly pleasures (goblets, pipes, and playing cards); symbols of death or transience (skulls, clocks, burning candles, soap bubbles, and flowers); and, sometimes, symbols of resurrection and eternal life (usually ears of corn or sprigs of ivy or laurel). The earliest vanitas pictures were sombre, somewhat monochromatic compositions of great power, containing only a few objects (usually books and a skull) executed with elegance and precision. As the century progressed, other elements were included, the mood lightened, and the palette became diversified. Objects were often tumbled together in disarray, suggesting the eventual overthrow of the achievements they represent. Somewhat ironically, the later vanitas paintings became largely a pretext for meticulous virtuosity in the rendering of varied textures and surfaces, but the artistic quality of the genre in no sense declined. Several of the greatest Dutch still-life painters, including David Bailly, Jan Davidsz de Heem (Heem, Jan Davidsz de), Willem Claesz Heda (Heda, Willem Claesz), Pieter Potter, and Harmen and Pieter van Steenwyck, were masters of the vanitas still life, and the influence of the genre can be seen in the iconography and technique of other contemporary painters, including Rembrandt (Rembrandt van Rijn).