Thirukkural-On Wealth-On Listening To The Wise-Kural-419

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Except those of deep and incisive knowledge absorbed by listening to the wise,
Others will rarely develop humility of speech.

Rajaji comments that listening to the expositions of learned, may, on difficult and finer points, sharpen the listeners" powers and automatically develop humility of speech, which is the sign of true learning. On the contrary, mere study and an exaggerated consciousness of it is apt to leave one arrogant and conceited.

'Sense shines with double luster when set in humility" quotes K M Balasubramaniam from William Penn, Quaker Evangelist, who founded Pennsylvania in U S A.

a parallel, projection of the same view is found in 'Kambaramayanam" as below:

“Vanangiya senniyan maraitha vaayinan
Nunangiya kaelviyan nuvalvathaayinaan" (Kamba: Vipeedanan, 87)