Just a quote from Dickens’ Bleak House (it’s longer but I decided to cut it). Here it goes:

‘My friends,’ says Chadband, ‘what is this which we now behold as being spread before us? Refreshment. Do we need refreshment then, my friends? We do. And why do we need refreshment, my friends? Because we are but mortal, because we are but sinful, because we are but of the earth, because we are not of the air. Can we fly, my friends? We cannot. Why can we not fly, my friends?’