Optical Principles of Natural Philosophy

Light is ubiquitous in production and life, and the scientific discussion and controversy about light have exceeded 300 years. Natural philosophy is needed to discuss scientific controversy, natural philosophy is needed in life, and natural philosophy is related to the future destiny of human beings. 

As a methodology derived from life, natural philosophy is a plain and simple cognitive practice under its esoteric cloak. An obvious benefit of using cognitive practice to understand how to know and what is truth is to bring natural philosophy into life. 

The inductive truths of natural philosophy are all necessary, true, and sufficient/invariant, these three conditions can discover paradoxes and reveal the traceability of theories. 

Explaining and understanding phenomena is the pursuit of certainty, seeking the unchanging truth (entity) among all changes (appearances). 

The ancient Greek atomic theory was to seek the substance entity. 

We care about cause and effect every day, and the four-meta cognitive model of natural philosophy and the three causes of thinking reveal its complexity. The laws of nature are not laws of natural causation.