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

Mathematics is the music of reason.

他人很重要

"The future is about creating a culture of continuous learning."

You have to think for yourself. It always amazes me how high-IQ people mindlessly imitate. I never get good ideas talking to other people.

數學不僅僅是關于數字、方程、計算或算法：它是關于理解的。