Expressum facit cessare tacitum

Expressum facit cessare tacitum is a legal maxim that means “what is expressed makes what is implied silent.” This form of construction is used while interpreting statutes, contracts and deeds. When a matter is clearly provided in a document, the clear and precise meaning is to be adopted. The implied meaning need not be adopted when a clear meaning is provided 

http://definitions.uslegal.com/e/expressum-facit-cessare-tacitum/