摩訶止觀 5.231

5.231

若根塵各離而有心生者，此是無因緣生，為有此離？為無此離？若有此離，還從緣生，何謂為離？若無此離，無何能生？若言此離有性，性為有？為無？若性是有，還從緣生，不名為離；若性是無，無何能生？如是推求，知心畢竟不從離生。

If mind arises with the sense faculty and sense object each remaining separate, this would be arising without causes and conditions. Does this separation exist, or does this separation not exist? If this separation exists, it still arises from conditions, so how could it be called separation? If this separation does not exist, how could nonexistence produce anything? If one says that this separation possesses a nature, does this nature exist, or does it not exist? If the nature exists, it still arises from conditions and cannot be called separation. If the nature does not exist, how could nonexistence produce anything? Searching in this way, one knows that mind ultimately does not arise from separation.