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 health of our oceans is directly linked to the health of our planet.

There is nothing more deceptive than an obvious fact.

The most important property of a program is whether it accomplishes the intention of its user.

A good mathematician is someone who can see analogies between theorems; a great mathematician is someone who can see analogies between analogies.

The act of writing is an act of optimism. You wouldn't take the trouble to do it if you felt it didn't matter.

It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be intelligent.

勤于學習的人才會愿意施教。