To give a generous hope to a man of his own nature, is to enrich him immeasurably. — William Ellery Channing
Economy without ecology means managing the human nature relationship without knowing the — Satish Kumar
Nature does nothing in vain, and in the use of means to her goals she is not prodigal. — Immanuel Kant
Science starts with preconception, with the common culture, and with common sense. — J. Robert Oppenheimer