The transition to cleaner energy must be practical, affordable, and reliable.
"The best way to predict the future is to create it."
数学不是一项观赏性运动;要理解它,必须积极参与其中。
释义:贫穷和低贱本身并不是耻辱,而通过谄媚、乞求他人来获取利益才是真正的耻辱。