Is He Jinsong's calligraphy valuable?

He Jinsong, father, doctor of philosophy. Scholars, painters and poets. He is currently a researcher at the Institute of World Religions of China Academy of Social Sciences, a doctoral supervisor and postdoctoral cooperation supervisor at the Graduate School of Chinese Academy of Social Sciences, a doctoral thesis supervisor at the Central Academy of Fine Arts, the chairman of the Painters Association of China Academy of Social Sciences, and the president of the International Zen Painting and Calligraphy Institute. Teacher He Jinsong's calligraphy works are old and steady, with strong brushwork and elegant style, which has certain collection value. It is estimated that the market price is around 3000 yuan per square foot.