To turn really interesting ideas and fledgling technologies into a company that can continue to innovate for years, it requires a lot of disciplines.

No flying machine will ever fly from New York to Paris.

Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.

You are like my little dog; when people see you, they know I am nearby.

Don't send me flowers when I'm dead. If you like me, send them while I'm alive.

It's better to be unhappy alone than unhappy with someone.

Anxiety is the dizziness of freedom.

There is an eloquence in true enthusiasm.

All that spirits desire, spirits attain.

Only those with no memory insist on their originality.

Every beauty which is seen here by persons of perception resembles more than anything else that celestial source from which we all are come.

A girl should be two things: classy and fabulous.

As long as we believe in absurdities we shall continue to commit atrocities.

I must uphold my ideals, for perhaps the time will come when I shall be able to carry them out.

I am dying from the treatment of too many physicians.

Design is not just what it looks like and feels like. Design is how it works.

Time is an illusion. Lunchtime doubly so.

When I had nothing to lose, I had everything. When I stopped being who I am, I found myself.

Common sense is the most widely shared commodity in the world, for every man is convinced that he is well supplied with it.

Humility is attentive patience.

Keep things at arm's length... If you let anything come too near you want to hold on to it. And there is nothing a man can hold on to.