A drop of water can penetrate a stone. Metaphor as long as you persist, you will succeed.

In Luo Song Dajing's "How Lin Yu and Lu Yi Qian beheaded the official": "One money a day, thousands of money a thousand days, rope saw wood and stone, water fell stone.

Both methods and languages should be used; As predicate and adverbial; The metaphor of persistence is victory.

For example, Liang Bin's "Red Flag Spectrum" VI: "Yan said,' Of course it wasn't built in a day, ~ Ah!'

Synonym iron pestle grinding needle

The antonym gives up halfway and tries a little.