One should see the world, and see himself as a scale with an equal balance of good and evil. When he does one good deed the scale is tipped to the good – he and the world is saved. When he does one evil deed the scale is tipped to the bad – he and the world is destroyed.
It is hard for a woman with whom an uncircumcised man has had sexual intercourse to separate from him. In my opinion this is the strongest of the reasons for circumcision.
The knowledge of God, the formation of ideas, the mastery of desire and passion, the distinction between that which is to be chosen and that which is to be rejected, all these man owes to his form.
Medical practice is not knitting and weaving and the labor of the hands, but it must be inspired with soul and be filled with understanding and equipped with the gift of keen observation.
It should not be believed that all beings exist for the sake of the existence of man. On the contrary, all the other beings too have been intended for their own sakes and not for the sake of anything else.
Consequently he who wishes to attain to human perfection, must therefore first study Logic, next the various branches of Mathematics in their proper order, then Physics, and lastly Metaphysics.
