We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Weight exercises like deads, squats, and leg press stress the heck out of your lower body - hamstrings, glutes, quads, calves and all of the little accessory muscles. It's necessary strength-building until you reach your realistic goals for your maximal life functionality.
For the calisthenic component of your fitness program, though, you can throw in a few sets of lunges to make your legs burn for 24 hrs. (That is not lactate burn, it is good muscle-damage, micro-tear burn/ache). I do 3 sets of walking lunges, with or without hand weights, weekly. Even though it counts as calisthenics, I think it toughens up the legs even though it is more endurance than strength. Good pain!
Readers are tired of my preaching that calisthenics are a necessary fitness component but I will persist. Contra Rippetoe, we preach a balance of approximately 1/3 weights, 1/3 cardio intervals, and 1/3 calis (including what I term "heavy" calis like Farmer's Walk, pull-ups, push-ups, heavy ball slams, lunges with weights, weighted planks, etc) - while agreeing that real weight training is the most important and effective fitness component.
I still believe that calisthenics are an integral part of any fitness regime. I was thinking about when I was doing karate and kick boxing, I didn't lift weights at all for 3 years, calisthenics only. A lot of body weight squats and various types of push ups, yet when I did try a bench press after 3 years of no weights I was still able to do a 200lb bench press. I weighted 170 at the time.