夜晚是一首伟大的诗,但星星是它的文字。
The night is a great poem, but the stars are its words.
We do not need magic to transform our world. We carry all the power we need inside ourselves already.
Mathematics is a living subject, constantly evolving and growing.
可持续性不是一种趋势;而是我们对地球和未来农民的责任。