You carry the passport to your own happiness

There's something inherently disappointing about success.

Nobody cares how much you know until they know how much you care.

The doors of wisdom are never shut.

Logic will take you from A to B. Imagination will take you everywhere.

Imagination is everything. It is the preview of life's coming attractions.

We are all here on earth to help others; what on earth the others are here for, I don’t know.

The only limit to our realization of tomorrow will be our doubts of today.

Limitations live only in our minds. But if we use our imaginations, our possibilities become limitless.

Ever make mistakes in life? Let’s make them birds. Yeah, they’re birds now.

If you think you are too small to make a difference, try sleeping with a mosquito.

When joy is a habit, love is a reflex.

The progress of the world will call for the best that all of us have to give.

If you hit a wrong note, it's the next note you play that determines if it's good or bad

Great things are done by a series of small things brought together.

The best time to plant a tree was 20 years ago. The second best time is now.

Always remember that you are absolutely unique. Just like everyone else.

You don’t have to see the whole staircase, just take the first step.

Not in doing what you like, but in liking what you do is the secret of happiness.

I never get tired of working on the building.

When schools flourish, all flourishes.