Quod Deterius Potiori Insidiari Soleat

This speech speaks, and discourses, and interprets both in your case and mine, and in that of all mankind, the things conceived in the mind, and it moreover comes forward to meet the things - which the mind conceives; for when the mind being excited towards any object connected with it receives an impetus, either because it has been moved internally by itself, or because it has received some remarkable impressions from external circumstances, it then becomes pregnant and labours to bring forth its conceptions. And, though it tries to deliver itself of them, it is unable to do so till sound, like a midwife, acting either through the medium of the tongue or of some other of the organs of speech, receives those conceptions and brings them to light.

And this voice is itself the most manifest of all the conceptions. For, as what is laid up is hidden in darkness until light shines upon it and exhibits it, in the same manner the conceptions are stored away in an invisible place, namely, the mind, until the voice, like light, sheds its beams upon them and reveals everything.