Attractive nuisance · Calculus of negligence · Caveat emptor · Caveat venditor · Contra proferentem · Duty of care · Eggshell skull · Fair use · First-sale doctrine · Good-faith exception · Living tree doctrine · Ignorantia juris non excusat · Implied powers · Implied terms of a contract · Odious debt · Plain view doctrine · Proximate cause · Res ipsa loquitur · Sovereign immunity · Stare decisis or Precedence rule · Standard of care · Unclean hands · Vicarious liability