That advice may be found here. Essays on other subjects, such as government-controlled minimum wage levels, also are available at the site.
Williams introduces the "income inequality" matter in this paragraph:
"Democrats plan to demagogue income inequality and the wealth gap for political gain in this year's elections. Most of whats said about income inequality is stupid or, at best, ill-informed. Much to their disgrace, economists focusing on measures of income inequality bring little light to the issue. Lets look at it." - Walter E. Williams
In the paragraphs which follow, he does just that! Too bad we didn't have honest and articulate politicians in both Parties in Washington who would be as straight with American citizens as is Dr. Williams.
The problem is that there is too much work inequality. There are too many folks doing nothing and living off the labor of others. This is the issue we need to be looking at. The form of taxation we have today is nothing but slavery.