essential+principle
21principle — n 1. rule, law, moral law, golden rule; rule of conduct, rubric, precept; guideline, rule of thumb, basic rule; formula, formulary, method, way; model, standard, criterion, convention, custom, practice; natural law, general truth, universal… …
22principle of war — any of the basic elements considered essential to success in war usually including objective, offensive, surprise, mass or concentration, economy of force, security, movement or mobility, cooperation, and simplicity …
23Bitter principle — Principle Prin ci*ple, n. [F. principe, L. principium beginning, foundation, fr. princeps, cipis. See {Prince}.] 1. Beginning; commencement. [Obs.] [1913 Webster] Doubting sad end of principle unsound. Spenser. [1913 Webster] 2. A source, or… …
24Coalition of Essential Schools — The Coalition of Essential Schools (CES) is an organization created to further a type of whole school reform originally envisioned by founder Ted Sizer in his book, Horace s Compromise. CES began in 1984 with twelve schools; it currently has 600… …
25Krogh's Principle — states that For such a large number of problems there will be some animal of choice or a few such animals on which it can be most conveniently studied. This concept is central to those disciplines of biology that rely on the comparative method,… …
26Anthropic principle — In astrophysics and cosmology, the anthropic principle is the philosophical argument that observations of the physical Universe must be compatible with the conscious life that observes it. Some proponents of the argument reason that it explains… …
27Pauli exclusion principle — The Pauli exclusion principle is a quantum mechanical principle formulated by Wolfgang Pauli in 1925. It states that no two identical fermions may occupy the same quantum state simultaneously . A more rigorous statement of this principle is that …
28Maximum principle — This article describes the maximum principle in the theory of partial differential equations. For the maximum principle in optimal control theory, see Pontryagin s minimum principle. In mathematics, the maximum principle is a property of… …
29Country of origin principle — For a discussion of labelling and marketing products according to their place of manufacture, see Country of origin. The country of origin principle is a principle in the law of the European Union for resolving conflict of laws between Member… …
30Curtin–Hammett principle — The Curtin–Hammett principle is a principle in chemical kinetics proposed by David Yarrow Curtin and Louis Plack Hammett. It states that, for a reaction that has a pair of reactive intermediates or reactants that interconvert rapidly (as is… …
