I was questioning him on the subject [of his interstellar travel]— which he doesn’t often allow—and had incautiously said, “of course I realise it’s all rather too vague for you to put into words,” when he took me up rather sharply, for such a patient man, by saying, “On the contrary, it is words that are vague. The reason why the thing can’t be expressed is that it’s too definite for language.”
- Perelandra, C.S. Lewis