I have the advantage of having found out how hard it is to get to really know something. How careful you have to be about checking your experiments. How easy it is to make mistakes and fool yourself. I know what it means to know something.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

When things are going well, something will go wrong. / When things just can't get any worse, they will. / Anytime things appear to be going better, you have overlooked something.

This is not very important what I'm doing. I'm just proving something.

The highest forms of understanding we can achieve are laughter and human compassion.

But the real glory of science is that we can find a way of thinking such that the law is evident.

We find that the statements of science are not of what is true and what is not true, but statements of what is known with different degrees of certainty: "It is very much more likely that so and so is true than that it is not true".