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

I try to leave every place a little better than I found it.

The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.

The deepest theorems often arise from the simplest observations.

我不知道沒有音樂我會做什么。

在像水泥這樣傳統的行業中，顛覆是進步的唯一途徑。