No one is free who has not obtained the empire of himself. No man is free who cannot command himself.

There is always room at the top.

If you don't like something, change it. If you can't change it, change your attitude. Don't complain.

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

Status quo, you know, is Latin for 'the mess we're in'.

Don't complain about the snow on your neighbor's roof when your own doorstep is unclean.

The time is always right to do the right thing

A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light.

He that can have patience can have what he will.

A bird doesn't sing because it has an answer, it sings because it has a song.

I don’t think we are going to become extinct. We are very clever and very resourceful.

When we see men of a contrary character, we should turn inwards and examine ourselves.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.

Pizza makes me think that anything is possible.

Great spirits have always encountered violent opposition from mediocre minds.

I long to accomplish a great and noble task; but it is my chief duty to accomplish small tasks as if they were great and noble

Years from now, after I'm gone, someone will listen to what I've done and know I was here. They may not know or care who I was, but they'll hear my guitars speaking for me.

Keep your face to the sunshine and you will never see the shadow.

No great discovery was ever made without a bold guess.

Some people feel the rain. Others just get wet.

Too much sanity may be madness - and the maddest of all is to see life as it is and not as it should be.