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

最好的科學是雙手弄臟而頭腦清醒時完成的。

A man can no more diminish God's glory by refusing to worship Him than a lunatic can put out the sun by scribbling the word 'darkness' on the walls of his cell.

A wealth of information creates a poverty of attention.

Every year of delay makes the problem harder to solve.

我想寫一本既有趣又能讓人思考的書。