Tiruvalluvar

“ Like puppet, decked with ornaments of clay, their beauty's vain pretence.
The beauty and goodness of one who is destitute of knowledge by the study of great and exquisite works, is like (the beauty and goodness) of a painted earthen doll. ”

“ Than poverty to men of goodly wisdom brings.
Wealth, gained by the unlearned, will give more sorrow than the poverty which may come upon the learned.
409 - Lower are men unlearned, though noble be their race,
Than low-born men adorned with learning's grace.
The unlearned, though born in a high caste, are not equal in dignity to the learned; though they may have been born in a low caste.
410 - Learning's irradiating grace who gain,
Others excel, as men the bestial train.
As beasts by the side of men, so are other men by the side of those who are learned in celebrated works. ”