你唯一应该努力超越的人是你昨天的自己。
The only person you should try to be better than is the person you were yesterday.
在严冬之中,我发现,在我心中,有一个不可战胜的夏天。
革命是一场漫长而艰苦的斗争,但它是实现真正独立和自由的唯一途径。
In the energy sector, collaboration is key to solving the complex challenges we face.