BG 18.63
इति ते ज्ञानमाख्यातं गुह्याद्गुह्यतरं मया।विमृश्यैतदशेषेण यथेच्छसि तथा कुरु
iti te jñānam ākhyātaṁ guhyād guhyataraṁ mayā vimṛiśhyaitad aśheṣheṇa yathechchhasi tathā kuru
Thus, I have revealed to you the truth, the mystery of mysteries. Having thought it over, you are free to act as you wish.
Translated by Shri Purohit Swami
Thus, wisdom more secret than secrecy itself has been declared to you by me. Reflect on it fully, then act as you wish.
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
iti—thus; te—to you; jñānam—knowledge; ākhyātam—explained; guhyāt—than secret knowledge; guhya-taram—still more secret knowledge; mayā—by me; vimṛiśhya—pondering; etat—on this; aśheṣheṇa—completely; yathā—as; ichchhasi—you wish; tathā—so; kuru—do