A pitcher needs two pitches, one they're looking for and one to cross them up.
What is life, after all, but a challenge? And what better challenge can there be than the one between the pitcher and the hitter.
You don't just throw the ball - you propel it.
Home plate is 17 inches wide, but I ignore the middle 12 inches. I pitch to the two-and-a-half inches on each side.
Once (Stan) Musial timed your fastball, your infielders were in jeopardy.
A sore arm is like a headache or a toothache. It can make you feel bad, but if you just forget about it and do what you have to do, it will go away. If you really like to pitch and you want to pitch, that's what you'll do.