We’ve been fighting off attacks of one kind or another for twenty years, almost.

I think I was pretty much constant, unvarying, for 20 years. So, I do want to give myself a pat on the back for focusing on one career without any dramatic slumps for the last 20 years. But [personally] I don’t want a son like me. I don’t think that highly of myself.

Traits like verbal fluency, adaptability, impulsivity, and humility are stable from childhood through adulthood.

The specific media my change, but the principles of human nature have remained fairly constant over the millenia.

Fidelity is not a reason for dulling attention.

Persecution has not crushed it, power has not beaten it back, time has not abated its force, and, what is most wonderful of all, the abuses and treasons of its friends have not shaken its stability.

L'honneste est stable et permanent.

your attention is the most valuable property you can ever possess.

It can seem an amazing fact that laws of nature keep on holding, that the frame of nature does not fall apart.

We have stood apart, studiously neutral.

Economists can take a good deal of credit for the stabilization policies which have been followed in most Western countries since 1945 with considerable success. It is easy to generate a euphoric and self-congratulatory mood when one compares the twenty years after the first World War, 1919-39, with the twenty years after the second, 1945-65. The first twenty years were a total failure; the second twenty years, at least as far as economic policy is concerned, have been a modest success. We have not had any great depression; we have not had any serious financial collapse; and on the whole we have had much higher rates of development in most parts of the world than we had in the 1920’s and 1930’s, even though there are some conspicuous failures. Whether the unprecedented rates of economic growth of the last twenty years, for instance in Japan and Western Europe, can be attributed to economics, or whether they represent a combination of good luck in political decision making with the expanding impact of the natural and biological sciences on the economy, is something we might argue. I am inclined to attribute a good deal to good luck and non-economic forces, but not all of it, and even if economics only contributed 10 percent, this would amount to a very handsome rate of return indeed, considering the very small amount of resources we have really put into economics.

The twentieth century was like twenty years' worth of change at today's rate of change.

I entertain no doubts as to the truths of the transfinites, which I recognized with God’s help and which, in their diversity, I have studied for more than twenty years; every year, and almost every day brings me further in this science.

It's not easy for a children's comic series to last for 20 years! I'm very satisfied with it. My current mindset is having a relaxed life, crafting creations freely, and do whatever I like.