We should not supplant the real environmental imperative to preserve the earth with the fantasy of colonizing other planets.
At bottom, then, all these beaked incursions had to do with the desperate imperative to preserve the species.
In the absence of an absolute imperative to preserve life, the idea of a life not worth living becomes very easy to accept.
The imperative to preserve the state, and with it the public good, could justify many deeds traditionally regarded as immoral, such as breaking your word.
"There is a moral imperative to preserve a healthy planet," said Valerie Rockefeller Wayne, a great-great-granddaughter of the oil magnate and a foundation trustee.
"However, it would be more accurate to describe him as a conservative pragmatist convinced that security and stability are imperative to preserve Al Saud rule and ensure prosperity for Saudi citizens".
Rapid assessment and evaluation are imperative to preserve maximal visual function.
As the patients are typically younger, it remains imperative to preserve the femoral head for as long as is possible.
That aside, scientists and evangelicals have managed to find common ground on issues such as climate change, agreeing on the moral imperative to preserve the planet.
"There is a moral imperative to preserve a healthy planet," Valerie Rockefeller Wayne, a great-great-granddaughter of Mr Rockefeller and a trustee of the fund, is quoted by the Washington Post as saying.
