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 only way to learn mathematics is to do mathematics.

真正的競爭優(yōu)勢來自于做別人不愿意做的事。

"In war, the first casualty is truth."

在人際關系中，善意和謊言勝過千言萬語的真實。

The best leaders are those who can see the potential in others before they see it in themselves.

It has yet to be proven that intelligence has any survival value.

能源獨立不僅僅是一個目標；它是國家安全的必需品。