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

"In the end, we will remember not the words of our enemies, but the silence of our friends."

當目標是行業的長期增長時，協作勝過競爭。

It doesn’t matter how far you might rise. At some point you are bound to stumble because if you’re constantly doing what we do， raising the bar.

"In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs."

在數學中，發現的旅程往往比目的地本身更有價值。