The true art of memory is the art of attention.
"Sometimes, when I'm drawing, I feel like I'm in a kind of dream world, where anything can happen."
数学的美在于它揭示隐藏的对称性和真理的能力。
保持一颗永不僵硬的心,一种永不疲倦的性情,以及一种永不伤人的态度。