"under the principle of" is a perfectly acceptable phrase in written English.
You can use it to refer to an idea, practice, or law that is accepted as a basis for action or behavior. For example: "We must abide by the law, under the principle of fairness."
In fact, we operate under the principle of "considered design".
Both assimilation and dissimilation are commonly subsumed under the principle of "ease of articulation".
Violators of the United Nations Convention against Torture should be prosecuted under the principle of "universal jurisdiction," Ms. Arbour said.
It said that under the principle of territoriality, no one should be tried abroad for crimes in his native land.
This kind of "fuzzy math" would never be tolerated under the principle of one person, one vote.
Still, Mr. Hu also repeated that Beijing would move "under the principle of independent decision-making, controllability, and gradual progress".
China has tolerated the meetings in Hong Kong, a former British colony that operates under the principle of "one country, two systems".
These laws have created a cosmopolitan civil society not of freedoms but of security measures, under the principle of reversibility of terrorism and the responses to it.
"When a determined criminal flouts international law under the principle of state sovereignty," he writes, "the world system, as currently constituted, appears unable or unwilling to stop him".
Essentially, it involves being willing, as Mr. Lee never was, to take up China's offer to discuss Taiwan's status under the principle of "one China".
Bentley was heard to utter the words "Let him have it", so he was convicted of murder under the principle of joint enterprise and hanged in 1953.
