河：黄河；带：衣带；山：泰山；砺：磨刀石。黄河像条衣带，泰山像块磨刀石。比喻经历的时间久远
endure the test of time,not change mind under any upheaval
河(hé)
带(dài)
山(shān)
砺(lì)
