Between the great things we cannot do and the small things we will not do, the danger is that we shall do nothing.

Monod’s aphorism warns against a common paralysis of will: we excuse inaction by focusing on tasks that are beyond our power (“great things we cannot do”), while simultaneously refusing the modest, available duties (“small things we will not do”). The result is moral and practical stagnation—nothing gets done. The line presses for humility and responsibility: accept limits without using them as alibis, and value incremental, concrete action as the ordinary path by which larger goods are approached. In a religious-ethical register consistent with Monod’s preaching, it also suggests that faithfulness is measured less by grand ambitions than by obedience in everyday obligations.