War is murder writ large.

Somewhere, something incredible is waiting to be known.

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

Imagination will often carry us to worlds that never were. But without it we go nowhere.

I don't want to believe. I want to know.

The absence of evidence is not the evidence of absence.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

For small creatures such as we the vastness is bearable only through love.

You have to know the past to understand the present.

Silence and indifference would not take you anywhere at the end of the day.

Those who are critical don’t like being criticized, and those who are insensitive have a deficiency in their senses.

Breathe in the small things

Not only have computers changed the way we think, they've also discovered what makes humans think - or think we're thinking. At least enough to predict and even influence it.

Teamwork makes the dream work, but a vision becomes a nightmare when the leader has a big dream and a bad team.

Depend upon it that the lovers of freedom will be free.

I really act for myself. I really love it. I don't think there's a way that you could handle these schedules, all of the actual work that goes into it, if you don't really, really love it.

Had we been as free from all sins as we were from gluttony and drunkenness we might have been canonized for saints.

It has always amazed and humbled me to how the risk to bloom can seem so insurmountable beforehand and so inevitably freeing once the threshold of suffering is crossed.

I'm retired 99.9%. Of course, there always is that .1%.