steady, persistent effort eventually overcomes even the hardest obstacle
Pratico um pouco de violão todo dia; água mole em pedra dura, tanto bate até que fura.
I practise the guitar a little every day; constant dripping wears away the stone.
The proverb's image goes back to a classical Latin commonplace: gutta cavat lapidem, non vi sed saepe cadendo — "the drop hollows the stone not by force but by falling often" — a line attributed to Ovid (Epistulae ex Ponto, IV.10.5). A closely related idea appears in Lucretius (stillicidi casus lapidem cavat).
Sources: Escreva.ai, Yuni (Latin quotes).
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