I don't feel frightened by not knowing things, by being lost in the mysterious universe without any purpose - which is the way it really is, as far as I can tell. Possibly. It doesn't frighten me.

Doubt is clearly a value in science. It is important to doubt and that the doubt is not a fearful thing, but a thing of great value.

The thing that doesn't fit is the thing that is most interesting.

I'm smart enough to know that I'm dumb.

Strange! I don't understand how it is that we can write mathematical expressions and calculate what the thing is going to do without being able to picture it.

No problem is too small or too trivial if we can really do something about it.

In fact the total amount that a physicist knows is very little. He has only to remember the rules to get him from one place to another and he is all right.