Maxim 12.3.3
That is certain which can be made certain; but that is more certain which is certain of itself.
Certum est quod certum reddi potest; sed id magis certum est quod de se certum est.
Source: 9 Co. 47a; Broom, Max. 624
Difficulty 2/5 — Approachable
Explanation
While both forms satisfy the law, a self-evident term is always preferred over one requiring extrinsic proof — precision in drafting eliminates future dispute.
Where this applies
- A term that's certain on its own is better than one requiring outside proof.
- Self-evident definitions are always preferred over those needing extrinsic evidence.
- Precision in drafting prevents future disputes.
Legal domains
See also
Cite this maxim
NeCede Max. 12.3.3 — That is certain which can be made certain; but that is more certain which is certain of itself. — 9 Co. 47a; Broom, Max. 624 (Certum est quod certum reddi potest; sed id magis certum est quod de se certum est.)
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