Greatest thing we can produce is character. Everything else can be taken from us, but not our character.
Life is a series of experiences, each one of which makes us bigger, even though sometimes it is hard to realize this.
I am in exact accord with the belief of Thomas Edison that spirit is immortal, that there is a continuing center of character in each personality. But I don't know what spirit is, nor matter either. I suspect they are forms of the same thing. I never could see anything in this reputed antagonism between spirit and matter. To me this is the most beautiful, the most satisfactory from a scientific standpoint, the most logical theory of life.