(n) Parkinson's law
(n) Biot-Savart law
(n) Benford's law
(n) (obsc) Le Chatlier's law
(n) law of conservation of angular momentum
(n) law of equimarginal utility
(n) law of diminishing marginal utility
(n) law of conservation of energy
(n) Gay-Lussac's law
(n) Gay-Lussac's law
(n) Dulong-Petit law
(n) Biot-Savart law
(n) Biot-Savart law
(n) Buys-Ballot's law
(n) combined gas law
(n) law of diminishing marginal product
(exp) (id) There is no rule without exceptions
(n) Weber-Fechner law
(n) Hardy-Weinberg principle
(n) (comp) rule-based security policy
(exp) do not delay to make amends for one's wrongs