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

數學不是關于數字、方程、計算或算法：它是關于理解的。

對感受者而言，生活是悲劇；對思考者而言，生活是喜劇。

The true investor welcomes volatility... a wildly fluctuating market means that irrationally low prices will periodically be attached to solid businesses.

True forest stewardship means leaving some trees - and some profits - for those who come after us.

Investors should be wary of high fees and complex products.

能源行業必須適應變化，才能在低碳未來保持相關性。

每一本書都是一次旅程，每一次旅程都會改變你。