Then something happened which completely altered his state of mind. The creature [. . .] was talking. It had language. If you are not yourself a philologist I am afraid you will have to take it on trust the prodigious emotional consequences of this realization in Ransom's mind. A new world he had already seen -- but a new, an extra-terrrestrial, a non-human language was a different matter. Somehow he had not thought of this [. . .] now, it flashed upon him like a revelation. The love of knowledge is a kind of madness. In the fraction of a second which it took to decide that the creature was really taking, while he still knew that he might be facing certain death, his imagination had leaped over every fear and hope and probability of his situation to follow the dazzling project of making a Malacandrian grammar. An Introduction to the Malacandrian language -- The lunar verb--A concise Martian-English Dictionary. . .the titles flitted through his mind [. . .] Unconsciously he raised himself on his elbow and stared at the black beast. It became silent. The huge bullet head swung round and lustrous amber eyes fixed him. There was no wind on the lake or in the wood. Minute after minute in utter silence the representatives of two so far-divided species stared each into the other's face.
From: Out of the Silent Planet by C.S. Lewis