I've done a reasonable amount of travelling, which I enjoyed, but not for too long at a time.

C is peculiar in a lot of ways, but it, like many other successful things, has a certain unity of approach that stems from development in a small group.

C is declining somewhat in usage compared to C++, and maybe Java, but perhaps even more compared to higher-level scripting languages. It's still fairly strong for the basic system-type things.

One of the obvious things that went wrong with Multics as a commercial success was just that it was sort of over-engineered in a sense. There was just too much in it.

The only way to learn a new programming language is by writing programs in it.

It seems certain that much of the success of Unix follows from the readability, modifiability, and portability of its software.

Obviously, the person who had most influence on my career was Ken Thompson.