The human race has one really effective weapon, and that is laughter.
Clarity and order are the foundations of good writing.
Literature is a lie, but it is a lie that always leads us to the truth.
Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.
The essence of mathematics lies in its freedom.
We have a responsibility to make technology accessible to all of humanity.
幸福是小小瞬间的积累。