最好的教师是建议而非教条化，并激发听众自我学习的愿望。
The best teacher is the one who suggests rather than dogmatizes, and inspires his listener with the wish to teach himself.
煤炭行业必须进化，否则就有被淘汰的风险。适应是生存的关键。
凡是陽性必刚强，刚强一定光明，光明则容易了解。凡是陰性必柔弱，柔弱一定陰暗，陰暗则难以预测。