«اِلْبَحْرِ يْعُوزِ الزِّيَادَهْ»

However abundant something may seem, it can still depend on a small further contribution. Great totals are made possible by the little parts that join them; the image is not limited to money.

The saying discourages dismissing modest help as insignificant. A minor amount, effort, or resource may matter precisely because it adds to what is already large.

Use it when urging someone to accept or provide a small contribution toward a larger need, especially when that contribution is underestimated because the overall amount appears ample; it may refer to effort or resources as well as money.