Gutta cavat lapidem non bis, sed saepe cadendo.
Sic homo fit sapiens bis non, sed saepe legendo.
(The drop hollows the stone by falling not twice, but many times. This is how a human becomes smart by reading not twice, but many times.)
It does sounds way better in the original Latin….
This was written by Giordano Bruno probably based on a line by Publius Ovidius Naso which goes like this:
Gutta cavat lapidem non vi, sed saepe cadendo.
(The drop hollows the stone not by force, but by falling many times.)