I think trying to understand our world is a really complicated endeavor and it's important to have a sort of solid rational approach like science does."

VOA: special.2009.12.01

and added a structure of math upon it, to build this edifice, which is a very solid edifice of thermodynamics as a science of equilibrium systems.

了这座热力学的坚固大厦，这是一门，平衡态系统,的科学。

麻省理工公开课 - 热力学与动力学课程节选

So, these are all the fundamentals that are involved in chemistry that relate to physical chemistry, organic chemistry, inorganic chemistry, biological chemistry, and are a solid foundation for studying any kind of life science.

所必须知道的最基本的化学知识,这些都是和物理化学,有机化学，无机化学，生物化学有关的基础知识,也是学任何生命科学的基础。

麻省理工公开课 - 化学原理课程节选

He tells these teenagers the key to being an astronaut is having a solid background in math and science.

VOA: standard.2010.02.02