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

We use mathematics to understand the markets, not to predict them.

"To understand the present, we must listen to the voices of the past."

真理很純粹，可決不簡單。

I've always been attracted to the lyric poem because of what it omits.

We are all ready to be savage in some cause. The difference between a good man and a bad one is the choice of the cause.