The historian must have a kind of faith that humanity will not and cannot perish.
写作是我向自己解释自己生活的唯一方式。
以柳丝榆荚的从容反衬桃李的飘零，暗喻超然物外的态度
We must balance the need for energy today with the imperative of protecting the planet for tomorrow.
我们必须平衡当今的能源需求与保护地球未来的必要性。