旅行就是写作，写作就是旅行。
To travel is to write, and to write is to travel.
"The beauty and mystery of this world only emerges through affection, attention, interest and compassion."
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
Art is not what you see, but what you make others see.
You can't change the past, but you can ruin the present by worrying about the future.