Thomas Jefferson believed in a nation of agriculture rather than one based on industry. He'd be pretty disappointed today!
Thomas Jefferson is a big name in American history books as one of the key founding fathers of the United States. His ideals and beliefs structured the nation and created a foundation of how things run today. However, there is one ideal that we have strayed away from, and didn't heed his warning. Jefferson believed in a nation of farmers and agriculture rather than one based on industry.
He firmly believed that unlimited expansion of commerce and industry, like we have seen in the last 150 years, would lead to to a class of wage laborers who rely on others to survive. They wouldn't be able to provide their own income or sustenance. These people would be vulnerable to political subjugation and economic manipulation. Jefferson wanted to combat this with an income tax that scales with a persons wealth. This would a disincentive to hoard wealth and provide some funds to distribute downward.
It may sound a bit like Communism, but Red Nations didn't exist back in the day when new government ideas were being formed. Jefferson was just trying to think of an economic structure that would create a strong, self-sustaining, financially secure people.