But in the case of Berkshire Hathaway they are also an occasion for its chairman and the world's most successful investor, Warren Buffett, to provide a few useful lessons in how to do it like he does. The reforms give the vast majority of taxpayers lower tax bills in the immediate future.
Forbes magazine estimates Buffett's personal worth at some $87 billion.
The country should be generally pro-trade, Buffett said, with as close to a balance of imports and exports as possible.
Warren Buffett made the argument against borrowing money to own stocks "There is simply no telling how far stocks can fall in a short period".
Buffett said it seems like Wells has gotten "all the cockroaches out of the kitchen" but wasn't completely sure.
He said the initiative seeks "fundamental change" in US health care, with medical care at least as good but with costs not continuing to eat up an increasing share of the economy.
That last requirement proved a barrier to virtually all deals we reviewed in 2017, as prices for decent, but far from spectacular, businesses hit an all-time high.More news: Mascots chosen by children for Tokyo 2020 Olympics, Paralympics unveiled
More news: What England and Scotland say happened in the Six Nations tunnel fracas
More news: Prime Minister leads delegation to Australia
Buffett said he keeps his hands off investment decisions by Combs and Berkshire's other investment deputy, Ted Weschler.
All told, Berkshire's net income increased more than 86% to $44.94 billion, while revenues increased 8.3% to $242.14 billion.
So what could Berkshire buy? Under it, Berkshire Hathaway receives 20% of IAG's consolidated Gross Written Premiums (GWP) and pays 20% of claims. He became the controlling shareholder of Berkshire in the 1960s. The stocks included, American Express, Apple Inc, Bank of America, The Bank of New York Mellon, BYD Co, Charter Communications, The Coca-Cola Co, Delta Airlines, General Motors, The Goldman Sachs Group, Moody's Corp, Phillips, Southwest Airlines, U.S. Bancorp and Wells Fargo.
Buffett also said that while Berkshire's insurance holdings would take a US$2 billion after-tax hit from losses caused by hurricanes a year ago in Florida, Texas and Puerto Rico, other reinsurance companies did far worse.
Book value is a company's basic value, or assets minus liabilities.
Buffett has always been highly critical of the high fees charged by hedge fund operators. "We also hold it today after a million or so "partners" have joined us at Berkshire", Buffett wrote. For the full-year 2017 insurance investment income passed $3.9 billion for the firm, up approximately $300 million on the prior year.
Still you could have used that argument to bet against Mr Buffett and have gone for hedge funds in 2007 and yet even then he would have won posthumously, as presumably he intended.