Theorems are not discovered by accident.
The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.
All good writing is swimming under water and holding your breath.
声音是一种天赋，但也是你每天必须努力练习的东西。
What I’m doing right now，I’m chasing perfection.