He who keeps his own secret avoids much mischief, [249]
He who kennels with wolves must howl, [49] (See He who herds)
He who knows a knave makes no bid for him, [379]
He who knows but little tells it quickly (or soon), [85], [251], [292]
He who knows how to beg may leave his money at home, [356]
He who knows nothing knows enough, if he knows when to be silent, [73]
He who knows nothing never doubts, [83]
He who knows the road can ride full trot, [85]
He who laid a snare for me has fallen into it, [249]