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

Mental phenomena can only be understood in terms of their consequences for action.

如果你要創新，你必須愿意被誤解。

The pursuit of power is the primary goal of states in the international system.

Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.

Forestry isn't extraction—it's cultivation on nature's timescale.

"The key to success is to focus on goals, not obstacles."

The leather industry must evolve or risk becoming obsolete.