Personality can change more in your 20s than at any other time in life.
A building should not shout; it should whisper to the people who use it.
"History is not the story of strangers, aliens from another realm; it is the story of us had we been born a little earlier."
在阿秒时间尺度上光与物质的相互作用揭示了一个比我们想象中更加动态的宇宙。
柴油发动机是当今已知效率最高的原动机。