He who knows nothing loves nothing. He who can do nothing understands nothing. He who understands nothing is worthless. But he who understands also loves, notices, sees. The more knowledge is inherent in a thing, the greater the love.

Consider that we shouldn't call our brother a fool, since we don't know ourselves what we are.

It should be forbidden and severely punished to remove cancer by cutting, burning, cautery, and other fiendish tortures. It is from nature that the disease comes, and from nature comes the cure, not from physicians.

Nature also forges man, now a gold man, now a silver man, now a fig man, now a bean man.

In every human being there is a special heaven, whole and unbroken.

Know that the philosopher has power over the stars, and not the stars over him.

Fasting is the greatest remedy-- the physician within.