数学不仅仅是关于数字、方程、计算或算法，而是关于理解。
I'm not interested in the rules of perspective. I'm interested in the way we actually see.
The truth is, we are all prisoners of our own minds.
Understanding the function of the mind is like mapping the stars - the patterns reveal the purpose.
The key to understanding human cognition is to understand how symbols are manipulated.
成功不是靠运气，而是靠努力、决心和从失败中学习。
Don't watch the clock; do what it does. Keep going.