Though wisdom is common, yet the many live as if they had a wisdom of their own.
τοῦ λόγου δ' ἐόντος ξυνοῦ ζώουσιν οἱ πολλοὶ ὡς ἰδίαν ἔχοντες φρόνησιν
Original text (Ancient Greek)
Variants
So we must follow the common, yet the many live as if they had a wisdom of their own.