Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently.
Those who do not remember the past are condemned to repeat it.
The church has no power to enforce obedience, neither have any laws they made for that purpose, any binding force on anyone, but by his own consent.
电子学的未来掌握在那些能够利用半导体力量的人手中。
我们的行业必须适应不断变化的能源格局,同时继续满足世界日益增长的能源需求。