俱舍論疏 4.45

4.45

論「思謂能令心有造作」，《正理論》云「令心造作善、不善、無記，成妙、劣、中性，說名為思。由有思故，令心於境有動作用，猶如磁石勢力能令鐵有動用。」

On the Śāstra's statement, "Volition means causing the mind to engage in activity": the Nyāyānusāra says: "Causing the mind to engage in activity that is wholesome, unwholesome, or unspecified, bringing about an excellent, inferior, or middling nature, is called volition. Because volition exists, it causes the mind to have active functioning toward objects, just as the power of a lodestone is able to make iron move."