In 1986, Congress capped tax-free contributions at $1 million, indexed for inflation to $1.03 million this year, and most states limit trusts to roughly 100 years by adopting a version of the 16th-century British common-law doctrine called the rule against perpetuities.
IF preserved, Mr. Pryor said, it could offer a four-mile stretch of breathing room and foot trail, with pedestrians and wildlife welcome, easement protected in perpetuity, a slice of untouchable nature Mr. Pryor called a "greenway".
Economists generally believe that the appropriate way of calculating the program's long-term cost is to do so in perpetuity, adjusted for the rate of interest, something called discounting or present value.
It involves landowners selling their development rights, through something called a conservation easement, to a state or nonprofit agency, which holds those rights "in perpetuity" (meaning for as long the United States maintains its current government and system of laws).
It "continues to generate and dispose of radioactive waste on-site at a facility called 'Area G,'" where nearly 11 million cubic feet of waste is stored in perpetuity.
The WBAI radio host Fran Luck called for the Tenth Street studio to be named the Shulamith Firestone Memorial Apartment, and rented "in perpetuity" to "an older and meaningful feminist".
A notice on a telephone pole announced that just by entering the premises you were granting a production company called Left/Right the permission to use your voice, words, and image in a project temporarily called "Untitled Carp" anywhere on earth or in the universe in perpetuity.
Cuba's constitution, which was adopted in 1901, included what is called the Platt Amendment, legislation that established conditions for American intervention in Cuba and gave the United States the right to maintain a military base on the island in perpetuity.
Once a transnational and post-territorial polity rejects the assumption that it must be what Rawls calls "a single cooperative scheme in perpetuity," a more fluid and negotiable order might emerge with plural authority structures along a number of different dimensions rather than a single location for public authority and power.
I want you to go there, go to his office, and stand there while he calls Warner Brothers legal to find out if perpetuity does actually mean forever," you know?
