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

A mathematical proof is a poem written in the language of logic.

好奇心驅動科學，但道德必須引導它。

The writer’s joy is the thought that can become emotion, and the emotion that can wholly become a thought.

We have to continually be jumping off cliffs and developing our wings on the way down.

大海對人類從不友善，最多只是人類不安分的幫兇。

"Art is not about what you see, but what you make others see."

I don't think about the past. The only thing that matters is the everlasting present.

The truth is often hidden in plain sight.