A long habit of not thinking a thing wrong gives it a superficial appearance of being right.
The past is always a rebuke to the present.
孔子说:“树立崇高理想、培养高尚品德、心怀仁慈友爱、陶冶高雅情操。”
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'