Canes timidi vehementius latrant.

Barking dogs rarely bite, and Brag is a good dog, but hold-fast is a better. Cowards are fond of noise and blustering, under which they hope to hide their baseness; but men of couragre, having nothing that they wish to conceal, are sedate and quiet, as the deepest waters flow with the least noise. Churchill has well depicted cowardice in the following lines.

–––«Caution before
With heedful steps the lanthorn bore,
Pointing at graves, while in the rear,
Trembling and talking loud went Fear».