可持续性不是一种选择；它是能源未来的必要条件。
Sustainability isn't an option; it's a necessity for the future of energy.
自由是创造力的氧气；没有它，艺术就会窒息。
The highest task of education is to develop in the individual a sense of responsibility towards humanity.
解释：情绪变化会影响身体生理反应，如贪心时口水增多，悲哀时流泪，体现了情绪与健康的关联。