The prime goal is to alleviate suffering, and not to prolong life. And if your treatment does not alleviate suffering, but only prolongs life, that treatment should be stopped.

I vowed never again to experiment with such sensitive creatures.

On Saturday, I was a surgeon in South Africa, very little known. On Monday, I was world renowned.

If the poor overweight jogger only knew how far he had to run to work off the calories in a crust of bread he might find it better in terms of pound per mile to go to a massage parlor.

The individual is the brain, not the heart.

I had bought two male chimps from a primate colony in Holland. They lived next to each other in separate cages for several months before I used one as a [heart] donor. When we put him to sleep in his cage in preparation for the operation, he chattered and cried incessantly. We attached no significance to this, but it must have made a great impression on his companion, for when we removed the body to the operating room, the other chimp wept bitterly and was inconsolable for days. The incident made a deep impression on me. I vowed never again to experiment with such sensitive creatures.

Suffering isn't ennobling, recovery is.