想要懂得今天,就必须研究昨天。
失去某人,最糟糕的莫过于,他近在身旁,却犹如远在天边。
创新不仅仅是技术的问题,更是改变人们思维和工作方式的问题。
People who cannot find time for recreation are obliged sooner or later to find time for illness.
Success comes from persistence and hard work.