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Next it was found that it was physiologically and structurally the same in the plant, that it was the living part of the plant, that which manifested the life and did the work in vegetable as well as in animal organisms.

Plants can't very well defend themselves by their behavior, so they resort to chemical warfare, and plants are saturated with toxins and irritants to deter creatures like us who want to eat them.

Whether we consciously realize it or not, the biodiversity with which we are most familiar, and the biodiversity with which we have most intimate historical, cultural and biological connections, is that associated with food plants.

A third of our food comes from pollinating plants.

We recognize in a plant some unknown power, a single, form-giving force, which creates and conserves, which moves unwaveringly toward its end, which appropriates what is useful to it and rejects that which would harm it.

The structural or biogenetic relations of plant products as deduced from the recognizable architectural components of the molecules have been consistent guides in my investigations.

Primates need good nutrition, to begin with. Not only fruits and plants, but insects as well.

Living organisms are created by chemistry. We are huge packages of chemicals.

We must consider the distinctive characters and the general nature of plants from the point of view of their morphology, their behavior under external conditions, their mode of generation, and the whole course of their life.

Human beings and plants have co-evolved for millions of years, so it makes perfect sense that our complex bodies would be adapted to absorb needed, beneficial compounds from complex plants and ignore the rest.