There is no such thing as a quality problem.
数学不是关于数字、方程、计算或算法的:它是关于理解的。
You can't stop the future, You can't rewind the past, The only way to learn the secret...is to press play.
音乐以其他事物无法做到的方式连接人们。
We are all susceptible to biases, even when we think we're being perfectly rational.