It is one thing to possess, and another thing to be in possession.
Aliud est vendere, aliud vendenti consentire.
It is one thing to sell, and another thing to agree to the persons selling.
Aliquis non debet esse judex in propria causa; quia non potest esse judex et pars.
One ought not to be judge in his own cause, because he cannot be a judge and a party.
Allegans contraria non est audiendus.
A person alleging contradictory things ought not to be heard.
Allegans suam turpitudinem non est audiendus.
A person alleging his own disgrace is not to be heard.
Allegari non debuit quod probatum non relevat.