(3)Systematic and Comprehensive Secur ity phi losophy This paper establishes a comprehensive understanding of the accident system, recognizes that man-machine-environment management is the comprehensive factor of the accident, and advocates the comprehensive measures of engineering technology hard means and education and management soft means
（3）Systematic and Comprehensive Security Philosophy This paper establishes a comprehensive understanding of the accident system, recognizes that man-machine-environmentmanagement is the comprehensive factor of the accident, and advocates the comprehensive measures of engineering technology hard means and education and management soft means
(4) Essential ism and Preventive Safety phi losophy Entering the information age, with the continuous application of high technology, human beings have an understanding of intrinsic security in safety epistemology, and emphasize the advance and initiative of security in methodology. The concrete manifestations are as follows: starting with the intrinsic safety of human beings, machines and environment, the intrinsic safety of human beings should start not only from the quality of human knowledge, skills and consciousness, but also from the humanistic quality of human ideas, attitudes, ethics, cognition, emotion and morality, so as to put forward the idea of safety culture
（4） Essentialism and Preventive Safety Philosophy Entering the information age, with the continuous application of high technology, human beings have an understanding of intrinsic security in safety epistemology, and emphasize the advance and initiative of security in methodology. The concrete manifestations are as follows: starting with the intrinsic safety of human beings, machines and environment, the intrinsic safety of human beings should start not only from the quality of human knowledge, skills and consciousness, but also from the humanistic quality of human ideas, attitudes, ethics, cognition, emotion and morality, so as to put forward the idea of safety culture
(5) Essential i sm and Preventive Safety phi losophy The"three simultaneous" principle of simultaneous design construction and commissioning of safety measures and technical facilities should be followed in technical projects Enterprises should plan, develop and implement the principle of "three synchronization"in safety production when assessing economic development mechanism transformation and technological transformation, and require"four non-harmful "activities that do not harm others do not harm themselves, be harmed by others and protect others from being harmed
（5）Essentialism and Preventive Safety Philosophy The "three simultaneous" principle of simultaneous design, construction and commissioning of safety measures and technical facilities should be followed in technical projects. Enterprises should plan, develop and implement the principle of "three synchronization" in safety production when assessing economic development, mechanism transformation and technological transformation, and require "four non-harmful" activities that do not harm others, do not harm themselves, be harmed by others and protect others from being harmed
(6"Prevent ion-or iented"is the embod i ment of safety phi losophy The philosophical assertion that "prevention is better than disaster relief" provides a solid theoretical basis for china s safe production and fire safety policy. This theoretical basis can be explained as follows: "Safety first, prevention first" has always been the basic principle of safety production in China, and fire prevention is also the theme of"prevention", so there is the policy of "prevention first, prevention combined with elimination
（6"Prevention-oriented" is the embodiment of safety philosophy The philosophical assertion that "prevention is better than disaster relief" provides a solid theoretical basis for China's safe production and fire safety policy. This theoretical basis can be explained as follows: "Safety first, prevention first" has always been the basic principle of safety production in China, and fire prevention is also the theme of "prevention", so there is the policy of "prevention first, prevention combined with elimination
2>The Theoretical Basis of Safety Science
The Theoretical Basis of Safety Science 2