Maxim
The Foundations Of Equity
Two maxims form the primary foundations of equity: Equity will not suffer an injustice and equity acts in personam. The first of these explains the whole purpose of equity, and the second highlights the personal nature of equity. Equity looks at the circumstances of the individuals in each case and fashions a remedy that is directed at the person of the defendant who must act accordingly to provide the plaintiff with the specified relief. Unless a statute expands the powers of an equity court, it can make decrees that concern property only indirectly, phrasing them as decrees against persons. It is said that these are the oldest two maxims of equity. All others are consistent with them.
Additional topics
Law Library - American Law and Legal InformationFree Legal Encyclopedia: Marque and Reprisal to MinisterMaxim - The Foundations Of Equity, "he Who Seeks Equity Must Do Equity.", "he Who Comes Into Equity Must Come With Clean Hands." - "Equity follows the law.", "Equity acts specifically.", "Equity regards substance rather than form."