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I remember, as a boy of 17 years of age, this was a fascinating thing for me: how we human beings breathe out carbon dioxide into the air, the leaves of plants pick this carbon dioxide up, and the plant gives off oxygen, which we can breathe in and keep our life going.

He plants trees to benefit another generation.

I know it sounds ridiculous, but I haven't quite got over the miracle that you plant things, and they do sprout up.

If we had paid no more attention to our plants than we have to our children, we would now be living in a jungle of weed.

For many years, I hated nature. As a student, I refused to put a plant anywhere - a living plant, that is. Dead plants were OK.

This is a truth that should be repeated like a mantra: to have any chance of a ful - filling life, we require not only clean air and a steady climate, but also an abundance of meadows and woodlands, rivers and oceans, teeming with life and the mass existence of other living creatures.

Men are mortal. So are ideas. An idea needs propagation as much as a plant needs watering. Otherwise both will wither and die.

We're moving to be more of a plant-based society.

Trees and plants always look like the people they live with, somehow.