τὸ σεμνόν
Ὁ δ' ἀνεξέταστος βίος οὐ βιωτὸς ἀνθρώπῳ -> The unexamined life is not worth living
Plato, Apology of Socrates 38aGreek > English (Woodhouse Phrases Reversed)
τὸ σεμνόν = ceremoniousness, dignity, grandeur, magnificence, pompousness, sanctity, stateliness, of manner, self importance
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(Translation based on the reversal of Woodhouse's English to Ancient Greek dictionary)