Strength, arts, morals.

Motto of Florida State University, Tallahassee, Florida, USA.

Within the powers.

A matter is intra vires when it is within the legal power, scope, or authority of an institution or individual to perform an action. The opposite term is ultra vires.

1. Beyond legal authority; literally: "Beyond the powers".

A reference to a court or other agency of government, an institution, or an individual, that exceeds its legal authority.

2. An antonym, or opposite, is intra vires.

There are other legal applications (or interpretations):

1. An act performed without any legal authority to act on the subject. It may refer to acts beyond the scope of the powers of a corporation; such as those that are defined by its charter or laws of state of incorporation.
2. The term has a broad application and includes not only acts prohibited by a charter, but acts that are in excess of powers granted and not prohibited, and generally applied either when a corporation has no power whatever to do an act or when the corporation has the power but exercises it.
3. An act is ultra vires when a corporation is without authority to perform it under any circumstances or for any purpose.
4. An ultra vires act of a municipality is one that is beyond the powers conferred upon it by law.

Manhood rouses one's strength.