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

The mathematician's patterns, like the painter's or the poet's, must be beautiful.

Every challenge is an opportunity to grow.

The biggest risk to business is not taking any risks on sustainability.

化學不僅僅是在燒瓶中混合物質，它是在分子層面上理解世界。

In times of crisis, true leadership is measured by actions, not words.

我不和別人競爭。我和自己競爭。

"The more you give, the more you receive."

The world is so full of simple, obvious, and beautiful things that it's a wonder anyone ever bothers to invent anything at all.