"Actually, the biennale is flexible enough to absorb various new forms of paintings as well as installation as an extended form of sculpture," he adds, refuting objections from some local critics about the quality of a biennale that excludes avant-guard art genres.
"True, art seeks innovation but innovation does not just mean new media and new art forms," he says.
"New possibilities and renewed vitality in traditional art genres are exactly what the Beijing Biennale strives to contribute to the diversity of contemporary world art."
The Beijing Art Biennale will last till August 24.
By Zhu Linyong