The Founding Fathers realized that "the power to tax is the power to destroy," which is why they did not give the Federal government the power to impose an income tax. Needless to say, the Founders would be horrified to know that Americans today give more than a third of their income to the Federal government.
Ron Paul (2008). “Pillars of Prosperity: Free Markets, Honest Money, Private Property”, p.84, Ludwig von Mises Institute