The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.

We do not consider our principles as dogmas contained in books said to come from heaven. We derive our inspiration, not from heaven, or the unseen world, but directly from life.

United we stand; divided we fall.

I love those who can smile in trouble...

Be yourself; everyone else is already taken.

To give real service, you must add something which cannot be bought or measured with money.

Courage is the thing. All goes if courage goes.

You shape your own destiny.

Dare to be free, dare to go as far as your thought leads, and dare to carry that out in your life.

The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.

Great spirits have always encountered violent opposition from mediocre minds.

I am the captain of my soul.

I dream my painting and I paint my dream.

Why live an ordinary life, when you can live an extraordinary one.

Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it.

We need never be ashamed of our tears.

It marks a big step in your development when you come to realize that other people can help you do a better job than you could do alone.

Above all things, respect yourself.

Live as if you were to die tomorrow. Learn as if you were to live forever.

One of the things I learned when I was negotiating was that until I changed myself, I could not change others.

The marble not yet carved can hold the form of every thought the greatest artist has.