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

The psychologist must be an impartial observer.

物理定律是宇宙書寫其故事的語言。

"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."

The desire for recognition, the thymotic part of the soul, is the most political part of man.

If you can dream it, you can achieve it.

我不完美，但我一直在努力變得更好。