I have to be alone very often. I'd be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That is how I refuel.

A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.

The only limits are the ones you set for yourself.

余白は、単なる空白ではなく、無限の可能性を秘めた空間である。

"I want to write books that make children think and feel."

实现明天理想的唯一障碍是今天的疑虑。