Patriotism is the virtue of the vicious.

The footsteps of Nature are to be traced, not only in her ordinary course, but when she deviates from it in her most extravagant excursions.

Sustainability is not an option, it's a necessity.

【译文】 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。”