few simple and comprehensive propositions stated in very general 
terms 
I might expend a life-time in exploring the details of one plane, 
just as an explorer might give his life to one corner of Africa, or 
a chemist to one subgroup of compounds. Each surh detailed 
piece of work may be very valuable, but it does not as a rule throw 
light on the main principles of the universe. Its truth is the truth 
of one angle. It might even lead to error, if some inferior person 
were to generalize from too few facts. 
Imagine an inhabitant of Mars who wished to philosophise 
about the earth, and had nothing to go by but the diary of some 
man at the North Pôle! But the work of every explorer, on 
whatever branch of the Tree of Life the Caterpillar he is after 
may happen to be crawling, is immensely helped by a grasp of 
general principles. Every magician, therefore, should study the 
Holy Qabalah. Once he has mastered the main principles, he 
will find his work grow easy. 
Solvitur ambulando: which does not mean: 46Call the 
Ambulance!” 
io