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 universe is not only stranger than we imagine, it is stranger than we can imagine.

Innovation is the ability to see change as an opportunity - not a threat.

Machinery and labor-saving devices are only valuable as they serve to reduce the cost of manufacture.

沒有聽到的不如聽到的，聽到的不如見到的，見到的不如了解到的，了解到的不如去實行，學問到了實行就達到了極點。

一個極其優秀的人。他沒有敵人，而他的朋友也沒有一個喜歡他的。