Satyameva jayate nānṛtam 

Mundaka Upanishad 3.1.6

सत्यमेव जयते नानृतं
सत्येन पन्था विततो देवयानः ।
येनाक्रमन्त्यृषयो ह्याप्तकामा
यत्र तत् सत्यस्य परमं निधानम् ॥६॥

satyameva jayate nānṛtaṁ
satyena panthā vitato devayānaḥ
yenākramantyṛṣayo hyāptakāmā
yatra tat satyasya paramaṁ nidhānam

Truth alone triumphs; not falsehood.
Through truth the divine path is spread out
by which the sages whose desires have been completely fulfilled, reach
where that supreme treasure of Truth resides