With accent marks:
Вода́ ка́мень то́чит.
Water wears away a stone.
Even if you act with little effort but constantly and persistently, you can achieve a lot.
The English equivalents of this Russian proverb are: Little strokes fell great oaks, Drop by drop the sea is drained, Water dripping day by day wears the hardest rock away, Water breaks down a mountain.
Other Russian proverbs
The beauty of a debt is its payment
In a healthy body, healthy mind.
When I eat I am deaf and mute.
Some to the forest, some for firewood.
With whom you are friends with, from them you will learn.
Silent means consent.
Live for a century, learn for a century, but die being a fool anyway.
Where there is no fish even a crayfish is a fish.