The discovery of superconductivity in MgB2 is simultaneously the fruition of decades of focused research and a stark reminder that nature does not always heed the rules of thumb we make up in our often vain attempts to describe her.

• 在硼化镁中发现超导性，是研究人员多年来投入的成果，也一针见血地提醒我们，大自然未必永远遵守我们多半徒劳无功的尝试中所建立起的经验法则。