All the usual warnings about being very careful with psychedelics, see usage guides like the one on Reality Sandwich. Also realize that there are various scam artists who will sell you not just diluted but entirely different products (instead of shrooms you get bath salts). See What's in My Baggie? for more on deceptive drug dealers.
'Historically, we may regard materialism as a system of dogma set up to combat orthodox dogma...Accordingly we find that, as ancient orthodoxies disintegrate, materialism more and more gives way to scepticism.'
- Bertrand Russell
- Bertrand Russell