Thaumcraft 3 - feed the beast wiki, Thaumcraft 3 is a mod which allows you to use the magic around you in the form of "vis.
Thaumcraft 3 - feed the beast wiki, "thaumaturgy which giveth certain order to make strange works, of the sense to be perceived and of men greatly to be wondered at." - mathematical preface to euclid.
Thaumcraft 3 - feed the beast wiki, Thaumcraft is a mod created by azanor. the version included in the ftb mod pack is thaumcraft 3, which is a completely different mod than thaumcraft 2..