The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.

——对共产国际派到广州之达林说，1922年4月27日

Compliment people behind their back. It’ll come back to you.

"Innovation in algorithms often comes from looking at old problems in new ways."