Though I have some different ideas then her, I have always thought Krista at Stumptuos.com was the goto girl for beginning weightlifting tips.  She's got tons of   good advice, and seems plenty motivational.

Here are some money clips from her website.

 

ON SUGAR

Personally, I think deliberately selling chemical and sugar laced shit to children should be considered akin to corporate child abuse. Probably the same people who make Ritalin also make Froot Loops - it's a great karmic cycle. I think whoever comes up with the latest blue-coloured cartoon-character-sponsored piece of sugared crap should be forced to remain in a small locked room with a toddler who has just consumed that substance.

ON SQUATS

In fact, there is strong evidence that squatting actually improves knee stability! The increased strength, balance, and proprioception from regular squatting can make a substantial contribution to keeping knees healthy. .......Most interesting to me is the problem with what is usually recommended as "safe": squatting to parallel. At parallel (where the thigh is parallel to the floor, higher than the depth of a full squat by about 30 degrees), the compressive forces on the patella (kneecap) are actually at their highest (Huberti & Hayes, Journal of Bone Joint Surgery, 1984: 715-724). Decelerating, stopping, and reversing direction at this angle can inspire significant knee pain in even healthy people, whereas full squats present no problem.

Another exercise which is supposedly "safer" is the leg extension, even though patellar tension and shear forces on the knee joint are demonstrably higher with such an exercise (see sidebar).

ON WOMEN WHO 'DON'T WANT TO GET BIG"

FOR THE LAST FUCKING TIME, YOU CANNOT GET TOO BIG FROM LIFTING WEIGHTS! A NON-DRUG-USING MALE TRAINEE WOULD HAPPILY CRAWL ON HIS LIPS THROUGH A FIELD OF LEECHES TO ADD FIFTEEN CRUMMY LITTLE POUNDS OF MUSCLE A YEAR! DO YOU THINK THAT YOU ARE SOMEHOW SO SPECIAL THAT YOU WILL DEFY THE LAWS OF PHYSIOLOGY AND SUDDENLY BECOME HUGE ONE DAY? WAKE UP AND SMELL THE GODDAMNED TESTOSTERONE, HONEY! WHAT'S THAT? YOU CAN'T? OH, PERHAPS THAT IS BECAUSE YOU DON'T HAVE ENOUGH TO MAKE YOU BULK UP???? RAAAAARRRRGGGGHHHHHHH KRISTA SMASH!!

 ON PANDAS

I'm not saying pandas deserve to be eliminated, but....

 

Everyone go check out her site, then get back to me with your favorite quotes.