色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

數學的歷史是人類思想和進步的歷史。

I don’t believe in an afterlife. This is it. Make the most of it.

成功不是終點，失敗也非致命，繼續前進的勇氣才是關鍵。

永不,永不,永不屈服。

Every observation we make is a step closer to unraveling the mysteries of the universe.

Once we dreamt that we were strangers. We wake up to find that we were dear to each other.

投資需要堅持紀律和耐心，不要因為市場波動而放棄原有的策略。

世界充滿了故事，時不時它們允許自己被講述。