If we want to make a statement about a man's nature on the basis of his physiognomy, we must take everything into account; it is in his distress that a man is tested, for then his nature is revealed.

All that man needs for health and healing has been provided by God in nature, the Challenge of science is to find it.

All things are poisons. It is simply the dose that distinguishes between a poison and a remedy.

Men who are devoid of the power of spiritual perception are unable to recognize anything that cannot be seen externally.

For one country is different from another; its earth is different, as are its stones, wines, bread, meat, and everything that grows and thrives in a specific region.

However, anyone to whom this happens should not leave his room upon awakening, should speak to no-one, but remain alone and sober until everything comes back to him, and he recalls the dream.

Dreams must be heeded and accepted. For a great many of them come true.