“There is no "tropical island paradise" I know of which remotely matches up to the fantasy ideal that such a phrase is meant to conjure up, or even to what we find described in holiday brochures. It's natural to put this down to the discrepancy we are all used to finding between what advertisers promise and what the real world delivers. It doesn't surprise us much any more. So it can come as a shock to realise that the world we hear described by travellers of previous centuries (or even previous decades) and biologists of today really did exist. The state it's in now is only the result of what we've done to it, and the mildness of the disappointment we feel when we arrive somewhere and find that it's a bit tatty is only a measure of how far our own expectations have been degraded and how little we understand what we've lost. The people who do understand what we've lost are the ones who are rushing around in a frenzy trying to save the bits that are left.”

“First we thought the PC was a calculator. Then we found out how to turn numbers into letters with ASCII — and we thought it was a typewriter. Then we discovered graphics, and we thought it was a television. With the World Wide Web, we've realized it's a brochure.”

“I watched the gorilla's eyes again, wise and knowing eyes, and wondered about this business of trying to teach apes language. Our language. Why? There are many members of our own species who live in and with the forest and know it and understand it. We don't listen to them. What is there to suggest we would listen to anything an ape could tell us? Or that it would be able to tell us of its life in a language that hasn't been born of that life? I thought, maybe it is not that they have yet to gain a language, it is that we have lost one.”

“David Attenborough has said that Bali is the most beautiful place in the world, but he must have been there longer than we were, and seen different bits, because most of what we saw in the couple of days we were there sorting out our travel arrangements was awful. It was just the tourist area, i.e., that part of Bali which has been made almost exactly the same as everywhere else in the world for the sake of people who have come all this way to see Bali.”

“So, the world is fine. We don’t have to save the world—the world is big enough to look after itself. What we have to be concerned about, is whether or not the world we live in, will be capable of sustaining us in it. That’s what we need to think about.”

“I've heard an idea proposed, I've no idea how seriously, to account for the sensation of vertigo. It's an idea that I instinctively like and it goes like this. The dizzy sensation we experience when standing in high places is not simply a fear of falling. It's often the case that the only thing likely to make us fall is the actual dizziness itself, so it is, at best, an extremely irrational, even self-fulfilling fear. However, in the distant past of our evolutionary journey toward our current state, we lived in trees. We leapt from tree to tree. There are even those who speculate that we may have something birdlike in our ancestral line. In which case, there may be some part of our mind that, when confronted with a void, expects to be able to leap out into it and even urges us to do so. So what you end up with is a conflict between a primitive, atavistic part of your mind which is saying "Jump!" and the more modern, rational part of your mind which is saying, "For Christ's sake, don't!" In fact, vertigo is explained by some not as the fear of falling, but as the temptation to jump!”

“What I'm not sure about, is if our lives have been so different from the lives of the people we save. We all complete. Maybe none of us really understand what we've lived through, or feel we've had enough time.”