“Often it isn't the mountains ahead that wear you out, it's the little pebble in your shoe.”
“Be master of your petty annoyances and conserve your energies for the big, worthwhile things. It isn't the mountain ahead that wears you out - it's the grain of sand in your shoe.”
“It isn’t the mountain ahead that wears you out; it is the grain of sand in your shoe.”
“it wasn't the mountain ahead that wears you out, but the grain of sand in your shoe”
“Quickly look down, now you tell me, when you were little did you ever imagine that you'd be wearing those shoes? Mind blowing isn't it?”
“Where you'd be wearing out the knees of your trousers, sir, they just have to go ahead and wear out their knees!”