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

There is no such thing as a moral or an immoral book. Books are well written, or badly written.

The most important property of a program is whether it accomplishes the intention of its user.

Adaptation is the mind's greatest achievement.

你能做的最好的投資就是投資自己——你的教育、技能和個人成長。