Speculative knowledge rejected

SB 10.14.3
jñane prayasam udapasya namanta eva
jivanti san-mukharitam bhavadiya-vartam
sthane sthitah sruti-gatam tanu-van-manobhir
ye prayaso ’jita jito ’py asi tais tri-lokyam

jñane—for knowledge; prayasam—the endeavor; udapasya—giving up completely; namantah—offering obeisances; eva—simply; jivanti—live; sat-mukharitam—chanted by the pure devotees; bhavadiya-vartam—topics related to You; sthane—in their material position; sthitah—remaining; sruti-gatam—received by hearing; tanu—with their body; vak—words; manobhih—and mind; ye—who; prayasah—for the most part; ajita—O unconquerable one; jitah—conquered; api—nevertheless; asi—You become; taih—by them; tri-lokyam—within the three worlds.

Those who, even while remaining situated in their established social positions, throw away the process of speculative knowledge and with their body, words and mind offer all respects to descriptions of Your personality and activities, dedicating their lives to these narrations, which are vibrated by You personally and by Your pure devotees, certainly conquer Your Lordship, although You are otherwise unconquerable by anyone within the three worlds.

Lord Brahma