Plain truths need not be proved.

Explanation

What is self-evident requires no proof — the law does not demand that a party prove what every reasonable man already knows to be true. (Duplicate maxim — see also 9.4.8.)

Where this applies

• A party demands formal proof of something everyone already knows.
• Someone requires evidence for an obvious and universally recognized fact.

See also

• 3.4.1 Discretion is to know through the law what is just.
• 9.1.2 The burden of proof falls upon the one who asserts, not the one who denies.
• 9.4.8 Plain truths need not be proved.