I don’t use any animal products, both because of ethical and environmental and climate reasons.

I eat only vegetables and fruit, and to me it’s the most aspirational diet because it’s so easy. It’s quite simple, the cooking I do.

Being a vegan is a first-world phenomenon, completely self-indulgent.

Solving the climate crisis is the greatest and most complex challenge that homo sapiens have ever faced. The main solution, however, is so simple that even a small child can understand it. We have to stop our emissions of greenhouse gases.

There’s 20 companies that I have investments in – some batteries, some solar-thermal, one big nuclear thing. We need hundreds and hundreds of companies like that, so that in a 20-year time frame we really are starting to change the energy infrastructure.

I just don’t like killing creatures.

It’s okay to eat fish because they don’t have any feelings.

While we ourselves are the living graves of murdered animals, how can we expect any ideal living conditions on this earth?

The nation that destroys its soil destroys itself.

I have become vegan – I don’t take dairy or meat. It has helped me a lot in terms of recovery and digestion.

The situation the Earth is in today has been created by unmindful production and unmindful consumption. We consume to forget our worries and our anxieties. Tranquilising ourselves with over-consumption is not the way.

Animals are my friends… and I don’t eat my friends.

We’re running the most dangerous experiment in history right now, which is to see how much carbon dioxide the atmosphere… can handle before there is an environmental catastrophe.

People’s choice to become vegan, from people I’ve spoken to, seems motivated by fear.

I try to be vegan… I really, really try. I don’t eat any red meat, and the whole animal thing really upsets me, so I’ve tried.

For 25 years countless people have come to the U.N. climate conferences begging our world leaders to stop emissions and clearly that has not worked as emissions are continuing to rise. So I will not beg the world leaders to care for our future. I will instead let them know change is coming whether they like it or not.

All virtue is summed up in dealing justly.

Economy forced me to become a vegetarian, but I finally starting liking it.

Even if producing CO2 was good for the environment, given that we’re going to run out of hydrocarbons, we need to find some sustainable means of operating.

We are at a time in history where everyone with any insight of the climate crisis that threatens our civilisation – and the entire biosphere – must speak out in clear language, no matter how uncomfortable and unprofitable that may be.

What important is man should live in righteousness, in natural love for mankind.

I personally have stopped flying. I have stopped eating meat and dairy.

I did this book ‚Harvest for Hope,‘ and I learned so much about food. And one thing I learned is that we have the guts not of a carnivore, but of an herbivore. Herbivore guts are very long because they have to get the last bit of nutrition out of leaves and things.

It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure on the world.