The only limit is the one you set for yourself.

What is broken can sometimes hold more meaning than what is whole.

The best way to predict the future is to create it.

Over the centuries the Indians developed sign language for communicating phenomena of interest. Programmers from different tribes (FORTRAN, LISP, ALGOL, SNOBOL, etc.) could use one that doesn't require them to carry a blackboard on their ponies.

电池革命才刚刚开始。