Science Quotes

From 600+ conversations with the world’s leading thinkers.

Intelligence is the ability to solve problems. For me intelligence is a property of life. Even the most humble unicellular living organism must be intelligent to solve the problems of everyday life. Human intelligence is, for want of a better phrase, a degree of magnitude greater than the intelligence of a Paramecium or, better, of a Chlamydomonas; but the difference is just quantitative and not qualitative.

The brain doesn't make a distinction about whether it's work or home. The key is to practice, practice, practice so that the skills become spontaneous and automatic.

I realised Freud had it all wrong; it wasn't about penis envy—a concept I hadn't encountered in 40 years of practice. The real desire should be for a healthier brain. That was the moment I understood the importance of brain envy.

Quantum mechanics is a whole new way of thinking– it says that the world is all by itself as a wave function of the universe, but you can never observe that. You can never observe a wave function directly. There is a complex relationship between what the world is and what you see when you look at it, and that relationship involves the idea that you can never predict precisely what you will see, but you can simply say the probability of what you will see.

The people of the world are gambling for colossal stakes. Two centuries of scientific enquiry, founded in basic physics and powerful evidence, indicate that the risks from a changing climate over the next hundred years and beyond are immense.

Our vision is something we call 'SETI of the mind.' The goal is to treat the DMT space and other altered states as novel domains to be explored, much in the same way we treat outer space. It is a completely new frontier inhabited by beings that we treat as potential intelligences with whom we can establish a two-way relationship.

The paradox is that in the Milky Way galaxy, with something like 400 billion stars and trillions of planets, it's estimated there may be around 10 billion potentially Earth-like worlds. And the galaxy has been around for about 13 billion years. If a civilisation had developed ahead of us and become spacefaring, it's very hard to see why we haven't noticed any evidence of that.

The discovery of an effective HIV vaccine is the nirvana for all our efforts to prevent AIDS.

If you tap out the rhythm to a familiar song, say 'happy birthday…' how often do you think that someone listening to your taps will guess the song? The person tapping usually guesses about 50%, but in reality, it's about 2.5%! You are assuming the other person can hear the song you are tapping!

If I say to you 41, it's data. If I tell you 41 is the temperature in centigrade, that's information. If I tell you 41 is the temperature, in centigrade, of a human patient, that really is information – in fact, it's in danger of becoming knowledge because of the contextualisation it gives you.

The real mystery is not why organisms as complicated as us age and die, but why there is a kind of immortality through the germ line! There clearly is some way that all the damaging aspects of life that feed into ageing are overcome in the germ line.

What's special about it as a science subject is that it is so awkward, it doesn't lend itself to easy solutions. It's a multi-factorial problem, very different to- for example- the question of what causes influenza?

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