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

顧客并不知道自己想要什么。

經濟進步既依賴于新想法，也依賴于更好的實施。

"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."

心理現象是大自然對生存問題的解決方案。

自守表示的研究是進入對稱性核心的旅程。

Insofar as a thing is in harmony with our nature， it is necessarily good.

唯一真正的失敗是不去嘗試。

We are all of us made by what we have lost as much as by what we have gained.

激發生命，讓生命自由發展，這是教育者的首要任務。