Although China's science popularization work has made great progress, there is still an order of magnitude gap between developed countries and developed countries in terms of quantity and quality. On some major issues of social concern, scientists should take the initiative to speak out. We must transform scientific language For the people to understand the language, tell the truth truthfully. If even scientists are unwilling to speak, let the truth be missing, and rumors spread, it will inevitably cause public panic and confusion. The above text is intended to emphasize:. ['Popular science work should be popular and grounded.', 'The number of popular science books in China is small and the quality is poor.', 'Scientists have the obligation to do science.', 'Scientists should adhere to the principle of seeking truth and being pragmatic.']