एतन्मन्त्रज्ञानं नैतन्मन्त्ररक्षणमिति पाराशराः ॥ कZ_०१.१५.२३ ॥
etan mantra-jñānaṃ na etan mantra-rakṣaṇam iti pārāśarāḥ
The Parāśaras say: “This is knowledge of counsel; this is not protection of counsel (i.e., secrecy).”
They separate ‘good counsel/analysis’ (mantra-jñāna) from ‘keeping counsel secret’ (mantra-rakṣaṇa).