Mysticism occurs whenever a human being sees the separation between the natural and the supernatural, between the temporal and the eternal, as overcome.

Every start on an untrodden path is a venture which only in unusual circumstances looks sensible and likely to succeed.

True philosophy must start from the most immediate and comprehensive fact of consciousness: "I am life that wants to live, in the midst of life that wants to live."

To affirm life is to deepen, to make more inward, and to exalt the will-to-life. At the same time the man who has become a thinking being feels a compulsion to give every will-to-live the same reverence for life that he gives to his own. He experiences that other life as his own. He accepts as being good: to preserve life, to raise to its highest value life which is capable of development; and as being evil: to destroy life, to injure life, to repress life which is capable of development. This is the absolute, fundamental principle of the moral, and it is a necessity of thought.

The stronger the reverence for natural life, the stronger grows also that for spiritual life.

In the same way as the tree bears the same fruit year after year, but each time new fruit, all lastingly valuable ideas in thinking must always be reborn.

Until he extends his circle of compassion to include all living things, man will not himself find peace.