What do Republicans beleive in?

Oldest son asked me to recommend a book upholding the principles of the Republican party. I thought about that and I couldn't think of anything more recent than "Conscience of a Conservative" which is kind of dated. All the newer books I know are either boring, or rants of little importance.
The recent campaign did sound bites, vague generalities and character assassination spreading heat but not light.
It comes to me that Republicans believe in free enterprise. This means freedom for anyone to enter any business that pleases them. Licenses should not be required for such ordinary occupations as cutting hair or teaching school. Licensing merely makes it difficult to enter those fields, and serves merely as a means to limit competition. Licenses restrict our freedom.
Free enterprise means the business should be free to offer any products it pleases, of any quality and for any price. Government should not set freight rates, airline ticket prices or the sale price of kitchen appliances. One perfectly legitimate business is buying and selling products from abroad. Over the long run exports have to equal imports. Each import is paid for with an export. Attempts to "protect" domestic industries and workers by taxing foreign trade may help the protected industries, but they hurt the majority of us who don't work in the protected industry. America has been in favor of free trade since WWII.
Free enterprise means no subsidies for farmers, oil companies, solar panels, battery powered cars, and other "worthy" things. The farmers, oil companies, solar power firms, and battery car makers must compete in the marketplace. If their products fill a real need and are priced right they will sell. If not, good riddance to them.
Free enterprise means the best thing society can do for it's poorer members is to provide them with jobs. A job is better than any amount of unemployment insurance, welfare, health care, day care, and other social welfare goodies. With a job, the worker has money and can buy all these services, without a job life is miserable. Business provides jobs, therefore the Government should encourage business, rather than treat business as robber barons.
Free enterprise is more efficient at providing goods and services. Compare US Postal Service with Fedex and UPS. If you want your Christmas presents to get there before Christmas, sent them Fedex, not Parcel Post. Things that can be provided by private enterprise, rather than civil servants, should be.
Free enterprise means business is owned by stockholders, not the government. The government has enough control over us poor citizens thru the law and the courts, the IRS, and the welfare agencies. We don't want to give the government control of the companies at which we work. Face it, your boss has a good deal of control over your life. You don't want your boss to be the government, 'cause then Uncle Sam has got you coming and going.