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.

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.

The book of Nature is that which the physician must read; and to do so he must walk over the leaves.

Dreams are not without meaning wherever they may come from — from fantasy, from the elements, or from another inspiration.

Nothing is hidden so much that it wouldn't be revealed through its fruit.

For it is we who must pray for our daily bread, and if He grants it to us, it is only through our labour, our skill and preparation.

All drugs are poisons the benefit depends on the dosage.