Underneath this change of the city, there is a progressive current, the current of the Construction Age.

隐藏在城市变迁的下方的是前进的潮流，建筑时代的潮流。

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We've agreed that tax reform should result in a system that is as progressive as the current one.

WSJ: Max Baucus and Dave Camp: Tax Reform Is Very Much Alive and Doable

It's also more progressive than the current system.

FORBES: A Kinder, Gentler Flat Tax

No Republican, not even Ron Paul, is going beyond the status quo to insist that top marginal tax rates must be cut by at least a third (ideally scrapping the current income-tax system altogether and replacing it with a pro-growth, low-single-rate tax system that does not punish saving, investing and entrepreneurial risk-taking as the current progressive income tax does).

FORBES: Memo To The President: We Can't Tax, Spend And Print Our Way To Prosperity