太阳每天都是新的。
解析:吃粗粮,喝清水,弯起胳膊当枕头,这其中也有着乐趣。
"The essence of mathematics lies in its freedom."
"The past is never dead. It's not even past."
Believe in your ideas, even if no one else does.
真正的喜悦精神、崇高感、超越人类的感觉,这是最高卓越的试金石,在数学中同样可以在诗歌中找到。