Translations
For a will is in force only at death — it has no validity while the one who made it is still living.
For a will only takes effect upon death — it carries no force while its maker is still alive.
For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth.
because a will does not take effect until the one who made it has died; it cannot be executed while he is still alive.

