January 2

… the forms and organisms of phenomenal being and existence in each of the kingdoms of the universe are myriad and numberless. The vegetable plane or kingdom, for instance, has its infinite variety of types and  material structures of plant life -- each distinct and  different within itself, no two exactly alike in   composition and detail -- for there are no repetitions in nature, and the augmentative virtue cannot be confined to any given image or shape. Each leaf has its own particular identity -- so to speak, its own individuality as a leaf... 
(‘Abdu’l-Baha, from a talk, 27 August 1912, Boston, Massachusetts, ‘The Promulgation of Universal Peace; The Compilation of Compilations vol. I, Conservation of the Earth's Resources)