Affirmati, non neganti incumbit probatio. The proof lies upon him who affirms, not on him who denies.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
(86) Such double negation, however, is the strongest affirmation of God: "The negation of negation is the kernel, purity and doubling of affirmation" (Negatio autem negationis medulla, puritas et geminatio est affirmati esse).