Thirukkural On Virtue- Hypocrisy-Kural-280

There is no need for tonsures or long tresses, provided one eschews Hypocritical conduct, which the world condemns.

Shaven head or long hair does not make an ascetic; it is the pure heart which shuns hypocrisy that really matters. Rajaji would comment on this, 'Some hermits shave their heads clean and others allow their hair to grow wild, according to the order to which they belong., Purity makes the saint, not these and other externals'.

"Manathukkan maacilan aadhal anaitharan" says Valluvar in Kural 34.

The word 'Ulaku' (world) in this context, means the world of sages.