The fact that my 15 minutes of fame has extended a little longer than 15 minutes is somewhat surprising to me and completely baffling to my wife. 
To be happy is to be content with everything.
You must live in the world while you are there, but do not become part of it, for you are part of God and do not belong to the world. The life ahead can only be glorious if you learn to live in total harmony with the Lord. He is there always, but it is for you to take His hand and proceed through life, hand in hand with Him in all that you do and think.
The person who does not read books has no advantage over the person who cannot read them.
Faked enthusiasm is worse than bad acting - it is bad acting with the intent to deceive.
Man is the best computer we can put aboard a spacecraft... and the only one that can be mass-produced with unskilled labor.
A little more moderation would be good. Of course, my life hasn't exactly been one of moderation.
The future is not a gift, it is a creation. We create it as we live.
We will act consistently with our view of who we are, whether that view is accurate or not.
When a thing has been said and well, have no scruple. Take it and copy it.
The true value of a human being can be found in the degree to which he has attained liberation from the self.
Useful thoughts are those that increase the experience of your own value.
You know you are getting old when the candles cost more than the cake.
In the beginners mind there are many possibilities, but in the experts mind there are few
I am accustomed to sleep and in my dreams to imagine the same things that lunatics imagine when awake.