Do you eat decayed food? No. Well, don't feed your mind with decayed books. Be as careful with the nutrition of your mind as you are with the nutrition of your body.

Use the freest goods for happiness... The stars cost nothing. Nature costs nothing. Your inner life costs nothing. God costs nothing. And yet they are all infinitely precious.

How many people on Earth serve people? And how many people on Earth serve the Earth? The difference in the numbers must be enormous. It would reveal that the Earth is definitely not the primary concern of the human species. This might be fatal both to the Earth and to humanity. Please, leaders of the Earth and the nations, wake up to this potentially fatal disparity.

There are thousands of books on the joy of gardening and cooking. Alas, there are only few on the joy of living.

When I was a child, I spoke like a child. When I was an adult, I no longer spoke like a child. When I became old and wise, I spoke again like a child. I wish I had spoken all my life like a child.

So at the request of educators I wrote the World Core Curriculum, the product of the United Nations, the meta-organism of human and planetary evolution.

Adults are the first and foremost teachers of love, peace, truth, tolerance, happiness and spirituality to their children. No school on Earth can ever replace them.