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

Man’s main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.

The greatest education in the world is watching the masters at work.

監管是必要的，但過度監管可能有害。