January 1

Although sensitivity in plants is slight as compared with that manifested in animals, within their own kingdom they have sensitivity and vegetable spirit. Cut across a conical shape, sprinkle a little sulphate of copper on it, add a little water and then observe it with a magnifier. You will find its components rushing toward the center. Their sensitivity is apparent in their effort to reach the center until they form a cylinder. 
- 'Abdu'l-Baha  (Words of ‘Abdu’l-Baha, October 5, 1912, San Francisco, USA, recorded by Mahmud Zarqani; ‘Mahmud’s Diary’)