Bhagavad Gita · 18.30

प्रवृत्तिं च निवृत्तिं च कार्याकार्ये भयाभये।बन्धं मोक्षं च या वेत्ति बुद्धिः सा पार्थ सात्त्विकी॥

pravṛittiṁ cha nivṛittiṁ cha kāryākārye bhayābhaye bandhaṁ mokṣhaṁ cha yā vetti buddhiḥ sā pārtha sāttvikī

O Partha, that intellect which knows the path of action and renunciation, what ought to be done and what ought not to be done, what is to be feared and what is not, what binds and what liberates — that intellect is sattvic.

— Bhagavad Gita 18.30

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)