To this objection there are two valid answers. Even if the rate should ultimately reach one hundred per cent. it need not, and on progressive principles it should not, effect confiscation of an entire income. The progressive theory is satisfied when the successive rates of the tax apply to successive increments of income, instead of to the entire income. For example, the rate might begin at one per cent. on incomes of one thousand dollars, and increase by one per cent. with every additional thousand, and yet leave a very large part of the income in the hands of the receiver. Each one thousand dollars would be taxed at a different rate, the first at one per cent., the fiftieth at fifty per cent., and the last at one hundred per cent. If the hundred per cent. rate were applied to the whole of the higher incomes, it would be a direct violation of the principle of equality of sacrifice. In the second place, the progressive theory forbids rather than requires the rate to go as high as one hundred per cent. While the sacrifices imposed by a given rate are greater in the case of small than of large properties, they become approximately equal as between all properties above a certain high level. After this level is reached, additional increments of wealth will all be expended either for extreme luxuries, or converted into new investments. Consequently they will supply wants of approximately equal intensity. For example, the wants dependent upon a surplus of 25,000 dollars in excess of an income of 100,000 dollars, and the wants dependent upon a surplus of 75,000 dollars above the same level do not differ materially in strength. To diminish these surpluses by the same per cent., say, ten, would impose proportionally equal burdens. Hence the rate of progression should be degressive; that is, it should increase at a constant pace until a certain high level of income is reached, then increase at a steadily diminishing pace, and finally become uniform on the very highest incomes. For example; if the rate increased one per cent. with every additional five thousand dollars, reaching fifteen per cent. on incomes of seventy-five thousand dollars, it should be on eighty thousand dollars, not sixteen but fifteen and one-half per cent. On 85,000 dollars the rate should be 15-3/4 per cent.; on 90,000, 15-7/8 per cent.; on 95,000, 15-15/16 per cent.; and on all sums of 100,000 and over, 16 per cent. The point at which the increments in the rate began to decline would be that at which differences in wants began to diminish, and the point at which the rate became stationary would be that at which wants fell to the same level of intensity. _The Proper Rate of Income and Inheritance Taxes_