The Bhagavad Gita Commentaries of Paramhansa Yogananda (Class 57)

Gita 18:30 - That intellect, O Partha (Arjuna), is sattwic which understands the nature of right action and knows when to refrain from (even right) action; which knows what should be done and what should not be done; which understands the distinction between what ought to be feared (as wrong) and what ought to be embraced fearlessly (as right and dutiful), and between what constitutes bondage and what constitutes the path to liberation.