One truth stands firm. All that happens in world history rests on something spiritual. If the spiritual is strong, it creates world history. If it is weak, it suffers world history. – Albert Schweitzer
A man is ethical only when life, as such, is sacred to him, that of plants and animals as that of his fellow men, and when he devotes himself helpfully to all life that is in need of help. – Albert Schweitzer
By having a reverence for life, we enter into a spiritual relation with the world By practicing reverence for life we become good, deep, and alive. – Albert Schweitzer
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful. – Albert Schweitzer
In the rich world, the environmental situation has improved dramatically. In the United States, the most important environmental indicator, particulate air pollution, has been cut by more than half since 1955, rivers and coastal waters have dramatically improved, and forests are increasing. – Bjorn Lomborg