(physics) The principle that a volume is a boundary of a higher-dimension region

A hypothesis attempting to explain how evolution may lead to "honest" or reliable signalling between animals which have an obvious motivation to bluff or deceive each other. It suggests that costly signals must be reliable, costing the signaller something that could not be afforded by an individual with less of a particular trait.

The idea that decisions about how to spend research funds should be made by researchers rather than politicians.

(law) legal principle under which the state should only limit an individual's actions to the extent that they would cause harm to another

(epistemology) Synonym of Occam's razor

A concept in the management of protected landscapes in the United Kingdom, where the need for conservation is balanced with access to the public.

The philosophical notion that an item drawn at random from one of several sets or categories is more likely to come from the most numerous category than from any of the others.

Alternative form of non-aggression principle

(evolutionary biology) The hypothesis that the phylogeny which includes the fewest character changes is the one most likely to be correct.

(somewhat derogatory) A policy that prohibits building anything that could disturb those who already reside in an area.