Science has often resisted new ideas and fought bitterly to prevent them coming on board.

If this is how science operates, by silencing those who express opposing views rather than by debating with them, then science is dead and we are in a new era of the Inquisition.

You have to understand that we've had more than 40 years now of massively financed propaganda called the 'War on Drugs'.

There can be no more intimate and elemental part of the individual than his or her own consciousness. At the deepest level, our consciousness is what we are - to the extent that if we are not sovereign over our own consciousness then we cannot in any meaningful sense be sovereign over anything else either.

I think it's obvious that the psychedelics are demonized and illegalized by our society because somewhere in our society are controlling minds that realize that these substances have the potential, have the power to unpick the controlling hierarchy.

People think I'm a freemason, and I'm not. People think I believe the end of the world is coming on 21 December 2012, and I don't.

Any kind of consciousness that is not related to the production or consumption of material goods is stigmatized in our society today.

Do we as adults have the right to make decisions about what we put in our own bodies and what we experience with our own consciousness without reference to the powers of the state, or must we seek permission from the state in order to explore our own consciousness?

It may be that DMT makes us able to perceive what the physicist call dark matter - the 95 per cent of the universe's mass that is known to exist but that at present remains invisible to our senses and instruments.

All politicians should be required to drink Ayahuasca 10 times before taking office.