An iron pestle turns into a needle
The Foolish Old Man Moves Mountains
Jingwei Reclamation
A drop of water penetrates a stone
Silicon steps a thousand miles
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A rope cuts off wood, and a drop of water penetrates a stone
With perseverance, gold and stone can be carved
Three feet of ice cannot be frozen in a day
No silicon steps can be accumulated , can't reach a thousand miles; without accumulating small streams, can't become a river or sea. ——Xunzi's "Encouraging Learning"