I've come to embrace the notion that I haven't done enough in my life. I've come to confirm that one's title, even a title like president of the United States, says very little about how well one's life has been led. No matter how much you've done or how successful you've been, there's always more to do, always more to learn, and always more to achieve.

That sort of lack of awareness on the part of an activist about the constraints of our political system and the constraints on this office, I think, sometimes would leave me to mutter under my breath. Very rarely did I lose it publicly. Yeah, usually I'd just smile.

The brain is a body part too; we just know less about it.

Contrary to the rumours you have heard, I was not born in a manger. I was actually born on Krypton and sent here by my father, Jor-el, to save the planet Earth.

In the eyes of God, a child on the other side of the border is no less worthy of love and compassion than my own child. We - we can't distinguish between them in terms of their worth and their inherent dignity and that they're deserving of shelter and love and education and opportunity. We can't isolate ourselves. We can't hide behind a wall.

I look forward to hosting an Iftar dinner celebrating Ramadan here at the White House later this week, and wish you a blessed month.

I thought I could start over, you see. But now I know you can never start over. Not really. You think you have control, but you are like a fly in somebody else's web. Sometimes I think that's why I like accounting. All day, you are only dealing with numbers. You add them, multiply them, and if you are careful, you will always have a solution. There's a sequence there. An order. With numbers, you can have control.