When I have been unhappy, I have heard an opera ... and it seemed the shrieking of winds; when I am happy, a sparrow's chirp is delicious to me. But it is not the chirp that makes me happy, but I that make it sweet.
Everyone has got it in him, if he will only make up his mind and stick at it. None of us is born with a stop-valve on his powers or with a set limit to his capacities. There is no limit possible to the expansion of each one of us.