The Pragmatic Programmer: Your Journey to Mastery, 20th Anniversary Edition

by Andy Hunt

Don’t just test your code, but test your assumptions as well. Don’t guess; actually try it.

Quality is a team issue. The most diligent developer placed on a team that just doesn’t care will find it difficult to maintain the enthusiasm needed to fix niggling problems. The problem is further exacerbated if the team actively discourages the developer from spending time on these fixes.

You shouldn’t jealously defend your code against interlopers; by the same token, you should treat other people’s code with respect. The Golden Rule (“Do unto others as you would have them do unto you’’)