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

I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.

真正的領(lǐng)導(dǎo)者不創(chuàng)造追隨者；他們創(chuàng)造更多的領(lǐng)導(dǎo)者。

我不追求完美，只追求真實(shí)。

We cannot always build the future for our youth, but we can build our youth for the future.

寫作的藝術(shù)在于描述世界如其所是，同時(shí)如其所可能是。

Memory is not about the past, it's about the present.

To live is to embrace the uncertainty of the future.

The greatest threat to our planet is the belief that someone else will save it.