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 key to progress is persistence and a willingness to challenge conventional wisdom.

I think that the most powerful films are the ones that stay with you long after you've seen them.

在科學(xué)中最令人興奮的短語(yǔ)，預(yù)示著新發(fā)現(xiàn)的，不是“我找到了！”，而是“這很有趣...”

The true genius shudders at incompleteness — and usually prefers silence to saying something which is not everything it ought to be.

書籍是最安靜且最恒久的朋友。