Kural - 1071

The base resemble men in outward form, I ween;
But counterpart exact to them I've never seen

Explanation
The base resemble men perfectly (as regards form); and we have not seen such (exact) resemblance (among any other species).

Tamil Transliteration
Makkale Polvar Kayavar Avaranna
Oppaari Yaanganta Thil.