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तद्विद्धि प्रणिपातेन परिप्रश्नेन सेवया ।
उपदेक्ष्यन्ति ते ज्ञानं ज्ञानिनस्तत्त्वदर्शिनः ॥४-३४॥

tadwiddhi praNipaatena pariprashnena sewayaa ।

upadekShyanti te dnyaanaM dnyaaninastattwadarshinaH ॥४-३४॥

Source: Automatic ITRANS Transliteration

Thus, know by submission, by inquiry, by service,
Knowledgeable seers of reality will instruct you in this knowledge.

Source: Milind S. Pandit

Acquire this transcendental knowledge by humble reverence, by sincere inquiry, and by service (to a Self-realized guru). The wise who have realized the truth will teach you.

Source: The Bhagavad-Gita: The Sacred Song

Just try to learn the truth by approaching a spiritual master. Inquire from him submissively and render service unto him. The self-realized soul can impart knowledge unto you because he has seen the truth.

Source: Bhagavad Gita As It Is