乐民之乐者,民亦乐其乐;忧民之忧者,民亦忧其忧。
——《孟子·梁惠王下》 /KFG4T6I1wA88vv7yORYgp7tlIml2UeoOx3vspl3MKqX60X5GMtFUMV2rPoK19pg