The beauty of the world has two edges, one of laughter, one of anguish, cutting the heart asunder.

Energy security is a crucial guarantee for national development. We must intensify technological innovation to enhance the efficiency of oil and gas exploration and production.

出自汉·桓宽《盐铁论·执务》。阜，土山。土积得多便会成山，水积得多便成江河。此以积土成山、积水成河为喻，说明积少成多、凡事要从一点一滴做起的道理。

如果你走在正确的道路上，并且愿意继续走下去，那你总有一天会取得进步。

用责备别人的态度责备自己，用原谅自己的态度对待别人。