A lot of slog is needed on the bottom rungs, but when you arrive at the very tip top, slogging is not merely not needed ? it may actually be dangerous.

• 在起步阶段，你往往需要许多苦干。但当你抵达那个至高点时，你需要的就不仅仅是苦干了，事实上，苦干可能会带来危险。