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

The question of technology is the question of the constellation of truth and untruth in which we live.

True scientific progress is achieved not by mere accumulation of facts, but by the continuous refinement of theories and models.

無論生活中發生什么，都要善待他人。善待他人是一種美好的遺產。

When you come from a war-torn country, you have a different perspective on life.

不要害怕問愚蠢的問題。因為99%的情況下其他人也想問同樣的問題，只是因為怕尷尬而羞于提問。