任何实验的价值和效用都取决于材料是否适合其使用的目的。
The value and utility of any experiment are determined by the fitness of the material to the purpose for which it is used.
Technology is the great equalizer in making energy production cleaner and more accessible.
每个人心中都有一张地图，这张地图是由他们的经历绘制的。
The only way to do great work is to love what you do.
历史是一个画廊，里面原作很少，复制品很多。
伟大的历史是用墨水和鲜血写成的。
"The past is always tense, the future perfect."