You have to have hope. Otherwise, I don't think you could handle it. Of course, you have to have both luck and pluck to make it.

I used to believe there were people on Mars, and of course now we know there aren't. Mars held particular interest. I was curious what kind of beings they would look like.

How does a pansy, for example, select the ingredients from soil to get the right colors for the flower? Now there's a great miracle. I think there's a supreme power behind all of this. I see it in nature.

You have to have hope. Otherwise, I don't think you could handle it. Of course, you have to have both luck and pluck to make it.

The planets are never the same twice, they're always different, so they could compare the markings I had drawn with their current photographs and they knew that I was drawing what I was really seeing and it wasn't copied from somewhere.

To me, the noise of a threshing machine is better music than a lot of music I hear nowadays. I took a man's place in the threshing crew when I was only 14 years old.

A person that much interested in science is going to neglect his social life somewhat, but not completely, because that isn't healthy either. So one has to work it out according to one's own inclinations, how one wants to proportion these things.