The cannabis experience has greatly improved my appreciation for art, a subject which I had never much appreciated before.

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.

I cringe when critics say I'm a master of the popular novel. What's an unpopular novel?

Patience is of two kinds: patience over what pains you, and patience against what you covet.

I might say something in Spanish; it all depends on how I'm feeling, what the situation is.

There is only one thing I hope to see before I die, and that is that my people should not need expressions of sympathy anymore.

One has to kill a few of one’s natural selves to let the rest grow — a very painful slaughter of innocents.

I just feel so good; it feels like a very creative time for me. As far as my mind, spirit, and body, I've never felt better.

Never believe that animals suffer less than humans. Pain is the same for them that it is for us. Even worse, because they cannot help themselves.

There's nothing people can't contrive to praise or condemn and find justification for doing so, according to their age and their inclinations.

I have never had an office that I work out of and work has become intertwined with my personal life.

We all have different musical instincts, and I think they're precious and should be respected.