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 use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.

我從不猜測。這是一個令人震驚的習慣——對邏輯能力具有破壞性。

友誼是人生最珍貴的財富。

元素周期表不僅僅是一張圖表，它是無限可能的地圖。

We don't want to create monuments, but places for life.

You can't just give up on someone because the situation's not ideal.

Never stop learning because the world never stops changing.

愛是唯一能夠將敵人轉變為朋友的力量。