Valmiki Ramayana Yuddha Kanda Sarga 36 Shloka 11
Original Shlokaद्विधाभज्येयमप्येवंननमेयंतुकस्यचित् । एषमेसहजोदोषस्स्वभावोदुरतिक्रमः ।।6.36.11।।
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द्विधा into two, भज्येयमपि resorts to breaks my head, एवम् also, कस्यचित् his mind, ननमेयम् bend myself to any one, एषः in that way, मे I, सहजः natural, दोषः weakness, स्वभावः nature, दुरतिक्रमः to overcome.
"I would break my head into two also but not bend my head to anyone. It is my weakness. It is hard to overcome nature."