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 compete with anybody but myself. When you compete with other people, you limit yourself.

A good mathematician is one who can see analogies between theorems; a great mathematician is one who can see analogies between analogies.

The more specific you are, the more universal you become.

感謝上帝，根據我們的憲法，教會和國家之間沒有聯系。