Safety and environmental protection are the lifelines of an enterprise and must never be neglected.
Children totally accept — and crave — family rules. “In our family we have a rule for X” is the only excuse a parent needs for setting a family policy. In fact, “I have a rule for X” is the only excuse you need for your own personal policies.
对于一个将一生奉献给某项事业的工程师来说,世界上最糟糕的事情莫过于有人剽窃它并署上自己的名字。
相对论不仅是一项科学成就,更是一种关于空间和时间的新思维方式。