过去是你所记得的、想象你记得的、说服自己记得的，或假装记得的。
The past is what you remember, imagine you remember, convince yourself you remember, or pretend you remember.
To truly understand a problem, you must first simplify it to its core essence.
The best technology should be invisible, just like electricity - you don't need to understand how it works to use it.
The major credit I think Jim and I deserve... is for selecting the right problem and sticking to it.
我认为我和吉姆值得称赞的主要原因是...选择了正确的问题并坚持研究它。