Let nothing which can be treated by diet be treated by other means.

Man's obsession to add to his wealth and honor is the chief source of his misery.

Teach thy tongue to say 'I do not know,' and thou shalt progress.

For every force charged by God, may He be exalted, with some business is an angel put in charge.

God is identical with His attributes, so that it may be said that He is the knowledge, the knower, and the known.

The soul is subject to health and disease, just as is the body. The health and disease of both . . . undoubtedly depend upon beliefs and customs, which are peculiar to mankind.

Giving is most blessed and most acceptable when the donor remains completely anonymous.