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

Don't wait until everything is just right. It will never be perfect. There will always be challenges, obstacles and less than perfect conditions. So what. Get started now. With each step you take, you will grow stronger and stronger, more and more skilled, more and more self-confident and more and more successful.

The most important thing is that we develop an interest in the world and take joy in our fellow human beings.

數(shù)學(xué)中最重要的是提出正確的問(wèn)題。

簡(jiǎn)單是終極的復(fù)雜。

"To live is the rarest thing in the world. Most people exist, that is all."

我學(xué)會(huì)了不能控制一切，有時(shí)候你只能放手。