One cannot divine nor forecast the conditions that will make happiness; one only stumbles upon them by chance, in a lucky hour, at the world's end somewhere, and hold fast to the days, as to fortune or fame. Willa Cather
When Anger rushes, unrestrain'd, to Action, Like a hot Steed, it stumbles in its way! The Man of Thought wounds deepest, and strikes safely. Richard Savage
I have pondered long, and I know now that only the pure of heart forgive the thirst that leads to dead waters. And only the sure of foot can give a hand to him who stumbles. Kahlil Gibran
It's a good horse that never stumbles. English Proverb
A Horse has four legs, but still stumbles. Russian Proverb
He who pursues an innocent chicken always stumbles. Nigerian Proverb