"There's no difference between one's killing and making decisions that will send others to kill. It's exactly the same thing, or even worse."

"Being seventy is not a sin."

"Whether women are better than men I cannot say - but I can say they are certainly no worse."

"Old age is like a plane flying through a storm. Once you're aboard, there's nothing you can do."

"They might not need me; but they might. I'll let my head be just in sight; a smile as small as mine might be precisely their necessity."

"The highest expression of strength is tenderness toward the vulnerable. Let this simple maxim guide your daily deeds."

"One of the really remarkably beneficial aspects of genetic engineering is that much of the previous methodology for controlling pests and so forth is through chemicals that affect a very broad spectrum of insects, for example, or fungicides that control fungi."

"Tonight I should like to thank all those who have shared my work and to acknowledge the debt that I owe to my wife whose encouragement to put research before all other things has been a great strength to me."