Words, mind and ego, with their respective controlling demigods, have failed to achieve success in knowing the Supreme Personality of Godhead. Therefore, we simply have to offer our respectful obeisances unto Him as a matter of sanity.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यतोऽप्राप्य न्यवर्तन्त वाचश्च मनसा सह । अहं चान्य इमे देवास्तस्मै भगवते नमः
yato'prāpya nyavartanta vācaśca manasā saha | ahaṃ cānya ime devāstasmai bhagavate namaḥ
SB 3.6.40