If you're looking to get ahead, he's right - smoking isn't going to get you there. The only thing that is pretty much guaranteed is that if you get caught by the fuzz, you're going to pay (literally - fines, court costs, whatever).

Whenever I do things I enjoy doing (fishing, mountain biking, hiking, etc), I enjoy getting high. The good thing is that I can enjoy doing these things WITHOUT getting high too; I think that's the important thing. If you can't enjoy doing things without being high, then thats when you're heading down the wrong road and you're depending on weed to make you content or happy.