Because of this:

"The sky was lit up with a bright yellow light — the earth appeared white. The yellow gradually became darker, turning gradually to orange. In the sky I saw white clouds from above the gadget caused by the sudden expansion following the blast wave — the expansion cools the air and fog clouds form — we had expected this. The orange got deeper, but where the gadget was, it was still bright, a bright orange, flaming ball-like mass."

And this:

" judge from your letter that in Venezuela you are teased badly if you are a professor and say you don't know or are not sure. I am glad that I am not so teased because I am sure of nothing, and find myself having to say "I don't know" very often. After all, I was born not knowing and have only had a little time to change that here and there. It is fun to find things you thought you knew, and then to discover you didn't really understand it after all."


Letters from Richard Feynman. It is definitely worth taking a little time to read this article.

Feynman inspires me with his bongo playing.