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 founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.

形式化方法不是銀彈，但它們是追求可靠系統的重要工具。

The most important thing in a programming language is the name. A language will not succeed without a good name.

能源的未來在于平衡當今的需求與未來的責任。

The greatest happiness of a teacher is to send groups of children to the other shore of their ideals.

Collaboration across borders and industries is key to solving the complex problems we face today.

I don't look for excuses. I look for solutions.