“Wisdom of the Earth is a 50cm (20in) tall sculpture carved from limestone in a primitive modernist style. … Dating to 1907 or 1908, it is one of just a few Brâncuşi works remaining in his homeland. The government has pledged €5m towards the €11m price, much lower than its estimated value of €15m-20m, and is seeking the rest from private contributions by 30 September.”