With freedom, books, flowers and the moon who could not be happy?
孔子说:“生来就知道的,是上等人;学习后才知道的,是二等人;遇到困难才学习的,是三等人;遇到困难也不学习的,这就是下等人了。”
"In the end, we will remember not the words of our enemies, but the silence of our friends."