Physics isn't the most important thing. Love is.
No problem is too small or too trivial if we can really do something about it.
You can know the name of a bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird... So let's look at the bird and see what it's doing -- that's what counts. I learned very early the difference between knowing the name of something and knowing something.
The worthwhile problems are the ones you can really solve or help solve, the ones you can really contribute something to.
There is no harm in doubt and skepticism, for it is through these that new discoveries are made.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
I was born not knowing and have only had a little time to change that here and there.
It's because somebody knows something about it that we can't talk about physics. It's the things that nobody knows anything about we can discuss.
A philosopher once said 'It is necessary for the very existence of science that the same conditions always produce the same results'. Well, they do not. You set up the circumstances, with the same conditions every time, and you cannot predict behind which hole you will see the electron.
The real question of government versus private enterprise is argued on too philosophical and abstract a basis. Theoretically, planning may be good. But nobody has ever figured out the cause of government stupidity and until they do (and find the cure) all ideal plans will fall into quicksand.