Letters 40.12

Fabianus, a man noteworthy because of his life, his knowledge, and, less important than either of these, his eloquence also, used to discuss a subject with dispatch rather than with haste; hence you might call it ease rather than speed. I approve this quality in the wise man; but I do not demand it; only let his speech proceed unhampered, though I prefer that it should be deliberately uttered rather than spouted.

Seneca, Letters to Lucilius 40.12, translated by Richard Mott Gummere