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

Profit should never come at the expense of the planet.

Luck has nothing to do with it, because I have spent many, many hours, countless hours, on the court working for my one moment in time.

The only way to approach the spiritual world is through the gate of reverence.

“追求科學不僅是一種職業(yè)，而且是一種生活方式。”

數學不僅僅是關于數字、方程、計算或算法：它是關于理解的。

I try to write books that are both entertaining and thought-provoking.

我不做風格。我對地點和時間的獨特性感興趣。

寫作的行為是對遺忘的抵抗。