Live as if you were to die tomorrow. Learn as if you were to live forever. (Mahatma Gandhi, 19th-20th century leader of the India independence movement)
Because we don’t know when our lives will end (by natural causes or accidents), Gandhi suggests that we fill up today by living at our best, hoping to leave some worthwhile achievement when we die. On the other hand, we should be continually learning so that the tomorrows we face will give us opportunity to do even more good.