Sustainability isn't a trend—it's a responsibility we owe to future generations.
学习的意愿是一种内在动机,其来源和奖励都在于其自身的实践。
有些人如果好好鼓励,做得出一番事业;但是,还是做那种不论险阻艰辛都要干下去的汉子吧。
Sometimes the hardest thing and the right thing are the same.