I, too, have done far worse drugs than smoking weed, and those drugs are the ones I stay away from, as they can seriously alter your mood, and daily outlook on life. Considering the length of time I have smoked, and the amount I smoke (just ask anyone who was at CougarFest), I still function fine throughout my day, and every night I produce at least 500 to 1000 lines of the most complex code you've seen, while high.
Intelligence and Wisdom... Or as I call 'em Book Smarts and Street Smarts. Knowledge is useless if you cannot properly apply it to life. I busted my ass when I was younger, and gave up some experiences because of it, so that I could be where I am today, still young, able to party my ass off, and I never have to worry about money.
What could be better? Oh yeah, free pot.

E1