Theory and Practice vs. Theory and Proof
The relations between the concepts, theory and proof, are also covered nicely in a Google search. (click) Look deeper and you will also find scholarly articles on theory and proof. (click) In these articles you will also find that many different 'theories and proofs' exist. For instance, particles with half-integral spin can be proven. Such other things can be proven but only if the parts of things are orderly and functional.
Based on my Google search, I conclude that 'theory and practice' applies only to the life of humans. Since I have proven the existence of God scientifically, I conclude that 'theory and proof'' applies only to the development of human knowledge of things. So do not try to prove your love for another person. Love can only be practiced. But, as I have said before, the practice of atheism is illegal in the USA because the USA is a nation under God.
Thus, I reject secular morals and say that all morals come from God The international work on human rights must thus confirmed with the laws of nature's God, a mandate of the U.S. Declaration of Independence.