You have to be comfortable making decisions with imperfect information.
你必须习惯在不完美的信息下做出决策。
I’m not a product of my circumstances, I’m a product of my decisions.
——〈建国方略之一：孙文学说——行易知难〉，1919年5月20日
Flow is being completely involved in an activity for its own sake. The ego falls away. Time flies. Every action, movement, and thought follows inevitably from the previous one, like playing jazz. Your whole being is involved, and you're using your skills to the utmost.
数学是逻辑思想的诗歌。