It gave me an inner joy, an open mindedness, a gratefulness, open eyes and an internal sensitivity for the miracles of creation... I think that in human evolution it has never been as necessary to have this substance LSD. It is just a tool to turn us into what we are supposed to be.

I know LSD; I don’t need to take it anymore. Maybe when I die, like Aldous Huxley.

I believe that if people would learn to use LSD’s vision-inducing capability more wisely, under suitable conditions, in medical practice and in conjunction with meditation, then in the future this problem child could become a wonderchild.

God only speaks to those who understand the language.

It’s very, very dangerous to lose contact with living nature.

When you study natural science and the miracles of creation, if you don’t turn into a mystic you are not a natural scientist.

Before LSD got onto the streets (in the 1960s), we were able to gather a lot of therapeutic experiences. The substance was used in the psychoanalysis of patients who couldn't be talked to.

In old times, and also in our time among the Indian tribes, psychedelic substances were considered sacred and they were used with the right attitude and in a ritual and spiritual context. And what a difference if we compare it with the careless and irresponsible use of LSD in the streets and in the discotheques of New York City and everywhere in the West. It is a tragic misunderstanding of the nature and the meaning of these kinds of substances.

I knew immediately that this drug would have importance for psychiatry but, at that time, I would never have believed that this substance could be used in the drug scene, just for pleasure. For me it was a deep and mystical experience and not just an everyday pleasurable one. I never had the idea that it could be used as a pleasure drug.

It was an April day and I went out into the garden and it had been raining during the night. I had the feeling that I saw the earth and the beauty of nature as it had been when it was created, at the first day of creation. It was a beautiful experience! I was reborn, seeing nature in quite a new light.