Nature is a light, and by looking at Nature in her own light we will understand her. Visible Nature may be seen in her visible light; invisible Nature may become visible if we acquire the power to perceive her invisible light.

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

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.

Women's regular bleeding engenders phantoms.

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

All drugs are poisons the benefit depends on the dosage.

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.