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 only valid data for psychology are observable behaviors.

The motor of our ingenuity is the question ‘Does it have to be like this?’, from which arise political reforms, scientific developments, improved relationships, better books.

我不是因為快樂而歌唱，而是因為歌唱而快樂。

寧愿因為有所作為而被世人知曉而死，也不愿默默無聞地活著