Nobody expects to trust his body overmuch after the age of fifty.

who behave amiss, or betray their public trust.

I don't care how many of these things I can inject into my body, am I going to be able to compete with Shaquille O'Neal on the basketball court? No. Or would he be able to compete with me on the skating surface? No. So there's a lot to just basic genetics, body style, physical stature, and then the mental capability, too. There's more to sports than just being big and strong and quick.

We found there were no differences in body fat [overall] at age 5 between breast-fed and formula-fed infants.

Your body is more vulnerable as you age. So things you did before, you might not be able to withstand now.

Trust not yourself, but your defects to know. Make use of every friend and every foe.