The climate system is extraordinarily complex, and our understanding of it is still evolving.
气候系统异常复杂，我们对它的理解仍在不断发展。
The most difficult thing is the decision to act, the rest is merely tenacity.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Success is my only motherfuckin' option, failure's not.