Arts and sciences are human activities of long history. Though difference lies in their study objects and way of thinking, art is of great value in scientific activities. Science is concerned with the law of physical world, through which human could solve practical problems. On the other hand, art pays attention to human's spiritual needs, longing for beauty and harmony in our heart, and this different way of thinking may help scientists to rethink the things which were once so familiar. Science is generally close to philosophy, likewise the individual scientist is not far from an artist.

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