Institutio Oratoria

But the true orator will not merely be able to achieve all the feats of which I have spoken with supreme excellence, but with the utmost ease as well. For the sovereign power of eloquence and the voice that awakens well-deserved applause will

be free from the perpetual distress of harassing anxiety which wastes and fevers the orator who painfully corrects himself and pines away over the laborious weighing and piecing together of his words.