“Science is opposed to theological dogmas because science is founded on fact. To me, the universe is simply a great machine which never came into being and never will end. The human being is no exception to the natural order. Man, like the universe, is a machine. Nothing enters our minds or determines our actions which is not directly or indirectly a response to stimuli beating upon our sense organs from without. Owing to the similarity of our construction and the sameness of our environment, we respond in like manner to similar stimuli, and from the concordance of our reactions, understanding is born. In the course of ages, mechanisms of infinite complexity are developed, but what we call ‘soul’ or ‘spirit,’ is nothing more than the sum of the functionings of the body. When this functioning ceases, the ‘soul’ or the ‘spirit’ ceases likewise.I expressed these ideas long before the behaviorists, led by Pavlov in Russia and by Watson in the United States, proclaimed their new psychology. This apparently mechanistic conception is not antagonistic to an ethical conception of life.”

“When asked if I am pessimistic or optimistic about the future, my answer is always the same: if you look at the science about what is happening on earth and aren’t pessimistic, you don’t understand the data. But if you meet the people who are working to restore this earth and the lives of the poor, and you aren’t optimistic, you haven’t got a pulse.”

“The poetry of the earth is never dead.”

“There are no owners in nature.”

“Man should listen to nature because she has wisdom beyond our knowledge.”

“You don’t learn confidence, you remember it.”

“May we recognise the species of trees before we learn the symbols of corporations, may we learn the songs of the birds before the top 40. May we touch hearts before we touch screens.”

“An afternoon drive from Los Angeles will take you up into the high mountains, where eagles circle above the forests and the cold blue lakes, or out over the Mojave Desert, with its weird vegetation and immense vistas. Not very far away are Death Valley, and Yosemite, and Sequoia Forest with its giant trees which were growing long before the Parthenon was built; they are the oldest living things in the world. One should visit such places often, and be conscious, in the midst of the city, of their surrounding presence. For this is the real nature of California and the secret of its fascination; this untamed, undomesticated, aloof, prehistoric landscape which relentlessly reminds the traveller of his human condition and the circumstances of his tenure upon the earth. “You are perfectly welcome,” it tells him, “during your short visit. Everything is at your disposal. Only, I must warn you, if things go wrong, don’t blame me. I accept no responsibility. I am not part of your neurosis. Don’t cry to me for safety. There is no home here. There is no security in your mansions or your fortresses, your family vaults or your banks or your double beds. Understand this fact, and you will be free. Accept it, and you will be happy.”

“Every creature was designed to serve a purpose. Learn from animals for they are there to teach you the way of life. There is a wealth of knowledge that is openly accessible in nature. Our ancestors knew this and embraced the natural cures found in the bosoms of the earth. Their classroom was nature. They studied the lessons to be learned from animals. Much of human behavior can be explained by watching the wild beasts around us. They are constantly teaching us things about ourselves and the way of the universe, but most people are too blind to watch and listen.”

“Wind is renewable. Turbines are not.”

“We are the ones we’ve been waiting for.”

“Animals do not even know that God is someone else”

“I am certain of his existence for he who created such a beautiful world wouldn’t leave it unattended, let alone trust us to take care of it.”

“Pick a leader who will not only bail out banks and airlines, but also families from losing their homes — or jobs due to their companies moving to other countries. Pick a leader who will fund schools, not limit spending on education and allow libraries to close. Pick a leader who chooses diplomacy over war. An honest broker in foreign relations. A leader with integrity, one who says what they mean, keeps their word and does not lie to their people. Pick a leader who is strong and confident, yet humble. Intelligent, but not sly. A leader who encourages diversity, not racism. One who understands the needs of the farmer, the teacher, the doctor, and the environmentalist — not only the banker, the oil tycoon, the weapons developer, or the insurance and pharmaceutical lobbyist.”