Sustainability isn't an option; it's a necessity for the future of energy.
能源的未來在于平衡經(jīng)濟增長與環(huán)境管理。
在數(shù)學中，提出問題的藝術(shù)必須比解決問題更有價值。
讓男孩們表現(xiàn)良好的最好方法是讓他們對有價值的事情保持興趣。
"History is not a linear path; it spirals, trapping us in its cycles until we confront its ghosts."