Spectemur agendo

Spectemur Agendo is a Latin motto meaning Let us be judged by our acts.

It comes originally from Book XIII of Ovid's Metamorphoses where it is attributed to the hero Ajax:

Denique (quid verbis opus est?) spectemur agendo!

which is literally translated as

Finally (what is the use of words?) let us be judged by the doing [sc. deeds]!

It was the ship's motto of HMCS Qu'Appelle (DDE 264), with the translation Let us be judged by our actions.

In the United Kingdom, it was first adopted as the motto of The Royal Dragoons (1st Dragoons) regiment of the British Army. It is the current Motto for A Company of the Royal Irish Regiment

It is the civic motto of:

Spectemur agendo is also the motto of:

and was once the motto of Dishforth Police Training Centre. The motto was then adopted by the North Eastern Police Training Centre at Durham, which opened when Disforth closed.

Spectemur Agendo was also the motto of the following institutions:

In the United States, it is the motto of several college student organizations including:

It is the Motto found on the challenge coin of Medic One paramedics.

It is the official motto of: The City of Troy (NY) Police Department Emergency Response Team (SWAT)

Sweet Briar College uses it as the class motto every four years. Their translation is We are proven by our actions

Spectemur Agendo is a German freemason lodge in Düsseldorf.

In Ireland, the motto also appear emblazoned upon the crest of the Edward Hussey-Montagu, 1st Earl Beaulieu, McAleer, Donnelly, Shannon and Mott family crest.

It is the family motto for the Cobb family, the Eager family and the Ager family, that can be found on its crest, dating back to ancestors who held the family seats in the counties of Yorkshire and Northumberland in England from ancient times.

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Wikipedia