“Quand rien ne semble fonctionner, je vais observer un casseur de pierres abattant sa masse sur un rocher une bonne centaine de fois sans lui infliger la moindre égratignure apparente. Mais au cent unième coup, le rocher se fendra en deux, et je sais que ce n’est pas seulement le dernier coup qui a fendu le rocher, mais les cent qui l’ont précédé.”
#english : "When nothing seems to help, I go and look at a stonecutter hammering away at his rock perhaps a hundred times without as much as a crack showing in it. Yet at the hundred and first blow it will split in two, and I know it was not that blow that did it, but all that had gone before."