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

藝術的目的是通過幫助我們更清晰地看待世界，使世界變得更美好。

If you can't explain your chemistry to a non-scientist, you don't understand it well enough.

A good abstraction is one that emphasizes the important details and suppresses the unimportant ones.

我不是詩人，我只是一個寫歌的人。