It's the possibility of having a dream come true that makes life interesting.

There is no refuge from confession but suicide; and suicide is confession.

Do not go where the path may lead, go instead where there is no path and leave a trail.

Don't ever take a fence down until you know why it was put up.

Pizza makes me think that anything is possible.

If you don't know, the thing to do is not to get scared, but to learn.

There is nothing in a caterpillar that tells you it's going to be a butterfly.

As long as I'm in great shape, nobody beats me, for sure.

Some people don't like change, but you need to embrace change if the alternative is disaster.

Only the wisest and stupidest of men never change.

The limits of the possible can only be defined by going beyond them into the impossible.

You lose nothing when fighting for a cause ... In my mind the losers are those who don't have a cause they care about.

Out of intense complexities intense simplicities emerge.

Listen to many, speak to a few.

The present is theirs; the future, for which I really worked, is mine.

I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.

Don't find fault, find a remedy; anybody can complain

March on. Do not tarry. To go forward is to move toward perfection. March on, and fear not the thorns, or the sharp stones on life's path.

Duty does not require any person to submit to the destruction of his personal ambitions and the right to live his own life in his own way.

A pure hand needs no glove to cover it.

My heroes are the ones who survived doing it wrong, who made mistakes, but recovered from them.