The best way to prepare for life is to begin to live.
Elbert Hubbard

To see if you're overtraining, check your pulse 1st thing in the morning the day after a workout. If it's 10 beats per minute or more above normal, your body is still recovering.

Success does not consist in never making blunders, but in never making the same one a second time.
Josh Billings

When doing lat pulldowns, don't wrap your thumb around the bar. Instead, place it on top, alongside your index finger. This decreases the involvement of your arm muscles, so you'll work your back harder. Works for pullups, too