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

與病毒的斗爭(zhēng)是自然與人類智慧之間的較量。

Music is supposed to inspire people.

文學(xué)不會(huì)改變世界，但可以改變那些將改變世界的人。

The central task of education is to implant a will and facility for learning; it should produce not learned but learning people. The truly human society is a learning society, where grandparents, parents, and children are students together.

書籍是黑暗中的光。

今天在可持續(xù)性方面的小步驟可能帶來明天的巨大變化。

抽象的力量在于它允許我們忽略不相關(guān)的細(xì)節(jié)，專注于問題的本質(zhì)方面。

Don't be afraid to stand alone for what you believe in.