When the Chinese poet, Feng Jicai, saw the rock paintings in the Helan Mountains, he expressed his feeling: ´´Time is silent, but the stone speaks´´. That is, all mortals are separate from one another in the sequence of the generations. Only the stones remain and transmit their message to the next generation. This not only does emphasize the timeless importance of cultural assets, but also draws our attention to the connection between time and art, which is always discussed as a classic topic in art historical and aesthetic research. On the one hand, art must prove itself in time; on the other hand, time relies on the expressive capacity of art to make its historical or aesthetic meaning visible and tangible to its viewers. Each artist designs the forms of time in his/her own way of representation.