It's easy to win forgiveness for being wrong; being right is what gets you into real trouble.
Most of the programmers in ten years will be us, and we won't get much smarter.
A program that has not been tested does not work.
The most important single aspect of software development is to be clear about what you are trying to build.
Nobody should call themselves a professional if they only knew one language.
Anybody who comes to you and says he has a perfect language is either naive or a salesman.