He's cribbing this from Larry Wall, the inventor of Perl, who said: "We will encourage you to develop the three great virtues of a programmer: laziness, impatience, and hubris."
https://wiki.c2.com/?LazinessImpatienceHubris
It has to be enlightened laziness of course. It doesn't mean blowing things off - it means spending ten minutes today to save yourself an hour a month from now.
It's great advice, if you use it right!