Three Virtues

According to Larry Wall, the original author of the Perl
programming language, there are three great virtues of a programmer; Laziness, Impatience and Hubris

1. Laziness: The quality that makes you go to great effort to
   reduce overall energy expenditure. It makes you write labor-saving
   programs that other people will find useful and document what you
   wrote so you don’t have to answer so many questions about it.
2. Impatience: The anger you feel when the computer is being
   lazy. This makes you write programs that don’t just react to your
   needs, but actually anticipate them. Or at least pretend to.
3. Hubris: The quality that makes you write (and maintain)
   programs that other people won’t want to say bad things about.

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via Laziness Impatience Hubris.