Execution is the performance of the law according to judgment.

Expressa nocent, non expressa non nocent.

Things expressed hurt; those not expressed do not hurt.

Expressio unius est exclusio alterius.

The expression of one is the exclusion of another.

Expressio illorum quæ tacite insunt nihil operatur.

The expression of those things which are tacitly implied, is unnecessary.

Ex qua persona quis lucrum capit, ejus factum præstare debet.

From whatever calling any one derives profit, he ought to discharge the duty of that calling.

Expressum facit cessare tacitum.