摩訶止觀 5.269

5.269

今解不生一句，何啻含於四義？且略出十不生、不不生意也。一者、一切法可破可壞，一切語可轉；非有非無，絕言離句。無一法入心，是一不生；不生亦不生，故名不不生。雖情謂不生，而實是生。如非想謂言無想，而成就細想。此乃邪見外道之不不生也。

Now, explaining the single phrase 'not arising', how could it contain only four meanings? Let us briefly set forth the meaning of the ten kinds of 'not arising and not not-arising'. First, all dharmas can be refuted and broken down, and all words can be altered; being neither existent nor nonexistent, it transcends words and is separate from phrases. Not a single dharma enters the mind—this is one 'not arising'; non-arising also does not arise, hence it is called 'not not-arising'. Although the mind deems it to be non-arising, in reality it is arising. It is just like the realm of neither-perception [nor non-perception] being called 'without perception', yet it accomplishes subtle perception. This is the 'not not-arising' of the tīrthikas of wrong views.