Institutio Oratoria

whereas, if the long syllables come first the foot is called a palimbacchius. Three shorts make a trochee, although those who give that name to the choreus call it a tribrach: three longs make a molossus.

Every one of these feet is employed in prose, but those which take a greater time to utter and derive a certain stability from the length of their syllables produce a weightier style, short syllables being best adapted for a nimble and rapid style. Both types are useful in their proper place: for weight and slowness are rightly condemned in passages where speed is required, as are jerkiness and excessive speed in passages which call for weight.