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

當你不再擔心別人怎么想的那一刻，你就自由了。

Curiosity is the driving force behind all great mathematical discoveries.

Mathematics is not just a human invention; it has a deep reality that exists independently of us.

過去永遠與我們同在，因為它滋養著現在。

I always tell my students that it's okay to make mistakes, as long as you learn from them.

Innovation happens when you stop thinking inside the box and start building a new one.

It is our mission as scientists of this generation to ensure Chinese people have enough to eat.

The next generation of scientists will solve problems we can’t even imagine today.

The truth is often hidden in plain sight.