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

Art is not made to decorate rooms. It is an offensive weapon in the defense against the enemy.

科學是關于后果的知識，以及一個事實對另一個事實的依賴。

The future of democracy depends on its ability to adapt to new challenges and to renew itself.

韌性是在逆境而非舒適中鍛造的。