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

Old age is not interesting until one gets there.

"To be born poor is an accident, but to die poor is a choice."

"We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct."

最終，自然界將決定弦理論是否是對宇宙的正確描述。