忧虑是人们生存的重要条件。与忧虑的正面交锋可以为我们驱赶厌倦感，使我们的感觉更加敏锐，并且保持人类生存所必须的压力。
在树枝下的一本诗集，一壶酒，一块面包——还有你在我身旁在荒野中歌唱——哦，荒野就是天堂！
A pure hand needs no glove to cover it.
Innovation is the key to sustainable development in the oil and gas industry. We must embrace new technologies to drive efficiency and environmental protection.
The most beautiful flowers bloom only in the land of freedom.
The only fence against the world is a thorough knowledge of it.
解释：闭目塞听，不去思考，不登高博览远望的人，和死人是一类的啊！