世界观是人们认识和观测世界的基础。本文综合分析了时间的单向均匀流逝性、三维空间的各向同性,展示了唯物主义的时空观,批驳了唯心主义时空观。在对质量和能量作全面分析的基础上揭示了质量是物质世界的本质,能量是物质的状态属性,质量与能量不能相互转化。 Worldview is the basis for people to know and observe the world. This paper analyzes the one-way uniformity of time, the isotropy of three-dimensional space, shows the view of materialism and space-time, refutes the concept of space-time idealism. Based on a comprehensive analysis of the quality and energy, it reveals that quality is the essence of the material world. Energy is the state attribute of matter, and the quality and energy can not be transformed into each other.