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

"With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how."

度過生活的唯一方法就是笑著度過。你要么笑，要么哭。我更喜歡笑?？迺屛翌^疼。

The study of heuristics reveals how we make quick, efficient decisions, but also how these shortcuts can lead to systematic errors.

The petrochemical industry must adapt to the low-carbon trend to remain competitive in the new era.

The only way to do great work is to love what you do.

I'm not afraid to die, I'm afraid of not trying.