俱舍論記 4.69

4.69

Regarding "Although some are difficult to discern, ... yet they do not contradict each other": Another objection. Although some things in the world are difficult to discern, they can nevertheless be known through careful deliberation. These two, equanimity and attention, are the most difficult to discern: namely, having alertness and lacking alertness are mutually opposed, yet they arise in a single mind without contradicting each other.