引力比其他力弱得多这一事实可能是物理学中最深刻的谜团。
人类的选择在于自由和幸福之间,而对于大多数人来说,幸福更好。
骑着马迎风而行,看人生的起伏变化;高声歌唱书写风景,笑看天地的荒凉与衰老。
Nature is the best teacher; it has already done the experiments, we just have to interpret them.
The path to sustainability is paved with both challenges and opportunities.